1264012468257 has 32 divisors (see below), whose sum is σ = 2101583232000. Its totient is φ = 656514947520.

The previous prime is 1264012468193. The next prime is 1264012468337. The reversal of 1264012468257 is 7528642104621.

It is not a de Polignac number, because 1264012468257 - 2⁶ = 1264012468193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264012488257) 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, 852118 + ... + 1803920.

It is an arithmetic number, because the mean of its divisors is an integer number (65674476000).

Almost surely, 2^{1264012468257} is an apocalyptic number.

It is an amenable number.

1264012468257 is a deficient number, since it is larger than the sum of its proper divisors (837570763743).

1264012468257 is a wasteful number, since it uses less digits than its factorization.

1264012468257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957573.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 1264012468257 in words is "one trillion, two hundred sixty-four billion, twelve million, four hundred sixty-eight thousand, two hundred fifty-seven".