1913473152 has 64 divisors (see below), whose sum is σ = 5647413600. Its totient is φ = 637823232.

The previous prime is 1913473117. The next prime is 1913473169. The reversal of 1913473152 is 2513743191.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1913473152² = 7322759006849630208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273378 + ... + 280289.

Almost surely, 2^1913473152 is an apocalyptic number.

1913473152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1913473152 is an abundant number, since it is smaller than the sum of its proper divisors (3733940448).

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

1913473152 is an equidigital number, since it uses as much as digits as its factorization.

1913473152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553690 (or 553672 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1913473152 is about 43743.2640757409. The cubic root of 1913473152 is about 1241.4830400064.

The spelling of 1913473152 in words is "one billion, nine hundred thirteen million, four hundred seventy-three thousand, one hundred fifty-two".