1975711950 has 144 divisors (see below), whose sum is σ = 5646977856. Its totient is φ = 493516800.

The previous prime is 1975711943. The next prime is 1975711993. The reversal of 1975711950 is 591175791.

It is a happy number.

1975711950 is a `hidden beast` number, since 19 + 7 + 571 + 19 + 50 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1975711896 and 1975711905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2072674 + ... + 2073626.

It is an arithmetic number, because the mean of its divisors is an integer number (39215124).

Almost surely, 2^1975711950 is an apocalyptic number.

1975711950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1975711950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2823488928).

1975711950 is an abundant number, since it is smaller than the sum of its proper divisors (3671265906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1975711950 is a wasteful number, since it uses less digits than its factorization.

1975711950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 99225, while the sum is 45.

The square root of 1975711950 is about 44448.9814281497. The cubic root of 1975711950 is about 1254.8000930246.

The spelling of 1975711950 in words is "one billion, nine hundred seventy-five million, seven hundred eleven thousand, nine hundred fifty".