15488742204 has 72 divisors (see below), whose sum is σ = 42199833312. Its totient is φ = 4761694080.

The previous prime is 15488742151. The next prime is 15488742209. The reversal of 15488742204 is 40224788451.

15488742204 is a `hidden beast` number, since 1 + 548 + 87 + 4 + 2 + 20 + 4 = 666.

It is a super-2 number, since 2×15488742204² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15488742204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15488742209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 558834 + ... + 585894.

It is an arithmetic number, because the mean of its divisors is an integer number (586108796).

Almost surely, 2^15488742204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15488742204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21099916656).

15488742204 is an abundant number, since it is smaller than the sum of its proper divisors (26711091108).

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

15488742204 is a wasteful number, since it uses less digits than its factorization.

15488742204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28307 (or 28302 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 45.

The spelling of 15488742204 in words is "fifteen billion, four hundred eighty-eight million, seven hundred forty-two thousand, two hundred four".