2150675478 has 96 divisors (see below), whose sum is σ = 5427392256. Its totient is φ = 602800704.

The previous prime is 2150675473. The next prime is 2150675521. The reversal of 2150675478 is 8745760512.

2150675478 is a `hidden beast` number, since 2 + 1 + 506 + 75 + 4 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150675473) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3148525 + ... + 3149207.

It is an arithmetic number, because the mean of its divisors is an integer number (56535336).

Almost surely, 2^2150675478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2150675478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2713696128).

2150675478 is an abundant number, since it is smaller than the sum of its proper divisors (3276716778).

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

2150675478 is a wasteful number, since it uses less digits than its factorization.

2150675478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 2150675478 is about 46375.3757720625. The cubic root of 2150675478 is about 1290.7980315417.

The spelling of 2150675478 in words is "two billion, one hundred fifty million, six hundred seventy-five thousand, four hundred seventy-eight".