256630476242427 has 64 divisors (see below), whose sum is σ = 417593546219520. Its totient is φ = 136993076123904.

The previous prime is 256630476242377. The next prime is 256630476242429. The reversal of 256630476242427 is 724242674036652.

It is not a de Polignac number, because 256630476242427 - 2⁶ = 256630476242363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (256630476242429) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 191591224 + ... + 192926042.

It is an arithmetic number, because the mean of its divisors is an integer number (6524899159680).

Almost surely, 2^{256630476242427} is an apocalyptic number.

256630476242427 is a deficient number, since it is larger than the sum of its proper divisors (160963069977093).

256630476242427 is a wasteful number, since it uses less digits than its factorization.

256630476242427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344152.

The product of its (nonzero) digits is 162570240, while the sum is 60.

The spelling of 256630476242427 in words is "two hundred fifty-six trillion, six hundred thirty billion, four hundred seventy-six million, two hundred forty-two thousand, four hundred twenty-seven".