15074728020 has 192 divisors, whose sum is σ = 51242284800. Its totient is φ = 3648798720.

The previous prime is 15074728001. The next prime is 15074728069. The reversal of 15074728020 is 2082747051.

15074728020 is a `hidden beast` number, since 1 + 507 + 4 + 72 + 80 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4803892 + ... + 4807028.

It is an arithmetic number, because the mean of its divisors is an integer number (266886900).

Almost surely, 2^15074728020 is an apocalyptic number.

15074728020 is a gapful number since it is divisible by the number (10) 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 15074728020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25621142400).

15074728020 is an abundant number, since it is smaller than the sum of its proper divisors (36167556780).

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

15074728020 is a wasteful number, since it uses less digits than its factorization.

15074728020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 15074728020 in words is "fifteen billion, seventy-four million, seven hundred twenty-eight thousand, twenty".