1913720764032 has 1280 divisors, whose sum is σ = 7472972390400. Its totient is φ = 471636172800.

The previous prime is 1913720764009. The next prime is 1913720764049. The reversal of 1913720764032 is 2304670273191.

1913720764032 is a `hidden beast` number, since 1 + 9 + 1 + 37 + 207 + 6 + 403 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1311665319 + ... + 1311666777.

It is an arithmetic number, because the mean of its divisors is an integer number (5838259680).

Almost surely, 2^{1913720764032} is an apocalyptic number.

1913720764032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1913720764032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3736486195200).

1913720764032 is an abundant number, since it is smaller than the sum of its proper divisors (5559251626368).

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

1913720764032 is a wasteful number, since it uses less digits than its factorization.

1913720764032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587 (or 1566 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 1913720764032 in words is "one trillion, nine hundred thirteen billion, seven hundred twenty million, seven hundred sixty-four thousand, thirty-two".