1957171264 has 14 divisors (see below), whose sum is σ = 3883761854. Its totient is φ = 978585600.

The previous prime is 1957171259. The next prime is 1957171297. The reversal of 1957171264 is 4621717591.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1340145664 + 617025600 = 36608^2 + 24840^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1957171264.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15290337 + ... + 15290464.

It is an arithmetic number, because the mean of its divisors is an integer number (277411561).

Almost surely, 2^1957171264 is an apocalyptic number.

It is an amenable number.

1957171264 is a deficient number, since it is larger than the sum of its proper divisors (1926590590).

1957171264 is an equidigital number, since it uses as much as digits as its factorization.

1957171264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30580813 (or 30580803 counting only the distinct ones).

The product of its digits is 105840, while the sum is 43.

The square root of 1957171264 is about 44239.9283905388. The cubic root of 1957171264 is about 1250.8626075763.

It can be divided in two parts, 19571712 and 64, that added together give a square (19571776 = 4424²).

The spelling of 1957171264 in words is "one billion, nine hundred fifty-seven million, one hundred seventy-one thousand, two hundred sixty-four".