256622327515043 has 32 divisors (see below), whose sum is σ = 305775940377600. Its totient is φ = 210785700617856.

The previous prime is 256622327514953. The next prime is 256622327515079. The reversal of 256622327515043 is 340515723226652.

256622327515043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256622327515043 - 2¹² = 256622327510947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (256622327575043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495544493 + ... + 496062081.

It is an arithmetic number, because the mean of its divisors is an integer number (9555498136800).

Almost surely, 2^{256622327515043} is an apocalyptic number.

256622327515043 is a deficient number, since it is larger than the sum of its proper divisors (49153612862557).

256622327515043 is a wasteful number, since it uses less digits than its factorization.

256622327515043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548771.

The product of its (nonzero) digits is 18144000, while the sum is 53.

The spelling of 256622327515043 in words is "two hundred fifty-six trillion, six hundred twenty-two billion, three hundred twenty-seven million, five hundred fifteen thousand, forty-three".