15261861112 has 128 divisors (see below), whose sum is σ = 32472576000. Its totient is φ = 6705169920.

The previous prime is 15261861107. The next prime is 15261861119. The reversal of 15261861112 is 21116816251.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15261861119) 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, 79904937 + ... + 79905127.

It is an arithmetic number, because the mean of its divisors is an integer number (253692000).

Almost surely, 2^15261861112 is an apocalyptic number.

It is an amenable number.

15261861112 is an abundant number, since it is smaller than the sum of its proper divisors (17210714888).

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

15261861112 is a wasteful number, since it uses less digits than its factorization.

15261861112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 336 counting only the distinct ones).

The product of its digits is 5760, while the sum is 34.

The spelling of 15261861112 in words is "fifteen billion, two hundred sixty-one million, eight hundred sixty-one thousand, one hundred twelve".