265264381957 has 8 divisors (see below), whose sum is σ = 274912227072. Its totient is φ = 255684720000.

The previous prime is 265264381913. The next prime is 265264381979. The reversal of 265264381957 is 759183462562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 265264381957 - 2³⁵ = 230904643589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265264381157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17037868 + ... + 17053429.

It is an arithmetic number, because the mean of its divisors is an integer number (34364028384).

Almost surely, 2^265264381957 is an apocalyptic number.

It is an amenable number.

265264381957 is a deficient number, since it is larger than the sum of its proper divisors (9647845115).

265264381957 is a wasteful number, since it uses less digits than its factorization.

265264381957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34091579.

The product of its digits is 21772800, while the sum is 58.

The spelling of 265264381957 in words is "two hundred sixty-five billion, two hundred sixty-four million, three hundred eighty-one thousand, nine hundred fifty-seven".