1264277331073 has 16 divisors (see below), whose sum is σ = 1397511522000. Its totient is φ = 1138336561152.

The previous prime is 1264277331061. The next prime is 1264277331133. The reversal of 1264277331073 is 3701337724621.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 429087882304 + 835189448769 = 655048^2 + 913887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1264277331073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264277331043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11709828 + ... + 11817301.

It is an arithmetic number, because the mean of its divisors is an integer number (87344470125).

Almost surely, 2^{1264277331073} is an apocalyptic number.

It is an amenable number.

1264277331073 is a deficient number, since it is larger than the sum of its proper divisors (133234190927).

1264277331073 is a wasteful number, since it uses less digits than its factorization.

1264277331073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23527284.

The product of its (nonzero) digits is 889056, while the sum is 46.

The spelling of 1264277331073 in words is "one trillion, two hundred sixty-four billion, two hundred seventy-seven million, three hundred thirty-one thousand, seventy-three".