1913562816 has 56 divisors (see below), whose sum is σ = 5523244224. Its totient is φ = 579866880.

The previous prime is 1913562811. The next prime is 1913562817. The reversal of 1913562816 is 6182653191.

It is not an unprimeable number, because it can be changed into a prime (1913562811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450910 + ... + 455133.

Almost surely, 2^1913562816 is an apocalyptic number.

1913562816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1913562816 is an abundant number, since it is smaller than the sum of its proper divisors (3609681408).

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

1913562816 is a wasteful number, since it uses less digits than its factorization.

1913562816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906069 (or 906059 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 1913562816 is about 43744.2889529593. The cubic root of 1913562816 is about 1241.5024313763.

The spelling of 1913562816 in words is "one billion, nine hundred thirteen million, five hundred sixty-two thousand, eight hundred sixteen".