256304367212802 has 64 divisors (see below), whose sum is σ = 545227737062400. Its totient is φ = 80043988783104.

The previous prime is 256304367212791. The next prime is 256304367212813. The reversal of 256304367212802 is 208212763403652.

It is an interprime number because it is at equal distance from previous prime (256304367212791) and next prime (256304367212813).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402581824 + ... + 403217972.

It is an arithmetic number, because the mean of its divisors is an integer number (8519183391600).

Almost surely, 2^{256304367212802} is an apocalyptic number.

256304367212802 is an abundant number, since it is smaller than the sum of its proper divisors (288923369849598).

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

256304367212802 is a wasteful number, since it uses less digits than its factorization.

256304367212802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654107.

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 256304367212802 in words is "two hundred fifty-six trillion, three hundred four billion, three hundred sixty-seven million, two hundred twelve thousand, eight hundred two".