1276056464 has 10 divisors (see below), whose sum is σ = 2472359430. Its totient is φ = 638028224.

The previous prime is 1276056449. The next prime is 1276056469. The reversal of 1276056464 is 4646506721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 729432064 + 546624400 = 27008^2 + 23380^2 .

It is not an unprimeable number, because it can be changed into a prime (1276056469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39876749 + ... + 39876780.

It is an arithmetic number, because the mean of its divisors is an integer number (247235943).

Almost surely, 2^1276056464 is an apocalyptic number.

It is an amenable number.

1276056464 is a deficient number, since it is larger than the sum of its proper divisors (1196302966).

1276056464 is an equidigital number, since it uses as much as digits as its factorization.

1276056464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79753537 (or 79753531 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 1276056464 is about 35721.9325345088. The cubic root of 1276056464 is about 1084.6508575270.

The spelling of 1276056464 in words is "one billion, two hundred seventy-six million, fifty-six thousand, four hundred sixty-four".