15242797620 has 96 divisors (see below), whose sum is σ = 47857286400. Its totient is φ = 4027439232.

The previous prime is 15242797553. The next prime is 15242797639. The reversal of 15242797620 is 2679724251.

15242797620 is a `hidden beast` number, since 15 + 2 + 4 + 2 + 7 + 9 + 7 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70624 + ... + 188343.

It is an arithmetic number, because the mean of its divisors is an integer number (498513400).

Almost surely, 2^15242797620 is an apocalyptic number.

15242797620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15242797620 is an abundant number, since it is smaller than the sum of its proper divisors (32614488780).

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

15242797620 is a wasteful number, since it uses less digits than its factorization.

15242797620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259094 (or 259086 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

It can be divided in two parts, 152427 and 97620, that added together give a cube (250047 = 63³).

The spelling of 15242797620 in words is "fifteen billion, two hundred forty-two million, seven hundred ninety-seven thousand, six hundred twenty".