256063590939 has 16 divisors (see below), whose sum is σ = 367690400000. Its totient is φ = 157573588896.

The previous prime is 256063590929. The next prime is 256063590953. The reversal of 256063590939 is 939095360652.

It is not a de Polignac number, because 256063590939 - 2⁹ = 256063590427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256063590929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424762 + ... + 2528160.

It is an arithmetic number, because the mean of its divisors is an integer number (22980650000).

Almost surely, 2^256063590939 is an apocalyptic number.

256063590939 is a deficient number, since it is larger than the sum of its proper divisors (111626809061).

256063590939 is a wasteful number, since it uses less digits than its factorization.

256063590939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166914.

The product of its (nonzero) digits is 11809800, while the sum is 57.

The spelling of 256063590939 in words is "two hundred fifty-six billion, sixty-three million, five hundred ninety thousand, nine hundred thirty-nine".