1975056426 has 128 divisors (see below), whose sum is σ = 5296320000. Its totient is φ = 544694976.

The previous prime is 1975056409. The next prime is 1975056439. The reversal of 1975056426 is 6246505791.

1975056426 is a `hidden beast` number, since 19 + 7 + 50 + 564 + 26 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 535300 + ... + 538976.

It is an arithmetic number, because the mean of its divisors is an integer number (41377500).

Almost surely, 2^1975056426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1975056426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2648160000).

1975056426 is an abundant number, since it is smaller than the sum of its proper divisors (3321263574).

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

1975056426 is a wasteful number, since it uses less digits than its factorization.

1975056426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738 (or 3718 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 1975056426 is about 44441.6069241426. The cubic root of 1975056426 is about 1254.6613004297.

It can be divided in two parts, 19750 and 56426, that added together give a square (76176 = 276²).

The spelling of 1975056426 in words is "one billion, nine hundred seventy-five million, fifty-six thousand, four hundred twenty-six".