15764986212912 has 160 divisors (see below), whose sum is σ = 46955638456320. Its totient is φ = 5058853056000.

The previous prime is 15764986212901. The next prime is 15764986212919. The reversal of 15764986212912 is 21921268946751.

15764986212912 is a `hidden beast` number, since 1 + 5 + 7 + 6 + 498 + 6 + 2 + 129 + 12 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 15764986212912.

It is not an unprimeable number, because it can be changed into a prime (15764986212919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 523789 + ... + 5639532.

It is an arithmetic number, because the mean of its divisors is an integer number (293472740352).

Almost surely, 2^{15764986212912} is an apocalyptic number.

15764986212912 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 15764986212912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23477819228160).

15764986212912 is an abundant number, since it is smaller than the sum of its proper divisors (31190652243408).

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

15764986212912 is a wasteful number, since it uses less digits than its factorization.

15764986212912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6163560 (or 6163548 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 15764986212912 in words is "fifteen trillion, seven hundred sixty-four billion, nine hundred eighty-six million, two hundred twelve thousand, nine hundred twelve".