1312765476 has 48 divisors (see below), whose sum is σ = 3431910720. Its totient is φ = 387054720.

The previous prime is 1312765471. The next prime is 1312765477. The reversal of 1312765476 is 6745672131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1312765471) 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, 129511 + ... + 139278.

It is an arithmetic number, because the mean of its divisors is an integer number (71498140).

Almost surely, 2^1312765476 is an apocalyptic number.

It is an amenable number.

1312765476 is an abundant number, since it is smaller than the sum of its proper divisors (2119145244).

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

1312765476 is a wasteful number, since it uses less digits than its factorization.

1312765476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268844 (or 268842 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 1312765476 is about 36232.1055971082. The cubic root of 1312765476 is about 1094.9535995017.

The spelling of 1312765476 in words is "one billion, three hundred twelve million, seven hundred sixty-five thousand, four hundred seventy-six".