15249806982 has 40 divisors (see below), whose sum is σ = 34965551016. Its totient is φ = 4965051168.

The previous prime is 15249806981. The next prime is 15249806993. The reversal of 15249806982 is 28960894251.

It is a happy number.

15249806982 is a `hidden beast` number, since 15 + 2 + 498 + 0 + 69 + 82 = 666.

It is a super-2 number, since 2×15249806982² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15249806981) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1087623 + ... + 1101554.

Almost surely, 2^15249806982 is an apocalyptic number.

15249806982 is an abundant number, since it is smaller than the sum of its proper divisors (19715744034).

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

15249806982 is a wasteful number, since it uses less digits than its factorization.

15249806982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189234 (or 2189225 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 15249806982 in words is "fifteen billion, two hundred forty-nine million, eight hundred six thousand, nine hundred eighty-two".