1916925856 has 12 divisors (see below), whose sum is σ = 3773947842. Its totient is φ = 958462912.

The previous prime is 1916925847. The next prime is 1916925863. The reversal of 1916925856 is 6585296191.

It can be written as a sum of positive squares in only one way, i.e., 1345715856 + 571210000 = 36684^2 + 23900^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29951935 + ... + 29951998.

Almost surely, 2^1916925856 is an apocalyptic number.

1916925856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1916925856 is a deficient number, since it is larger than the sum of its proper divisors (1857021986).

1916925856 is an equidigital number, since it uses as much as digits as its factorization.

1916925856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59903943 (or 59903935 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 52.

The square root of 1916925856 is about 43782.7118392637. The cubic root of 1916925856 is about 1242.2293091383.

The spelling of 1916925856 in words is "one billion, nine hundred sixteen million, nine hundred twenty-five thousand, eight hundred fifty-six".