15149477853 has 12 divisors (see below), whose sum is σ = 21888773920. Its totient is φ = 10096792776.

The previous prime is 15149477851. The next prime is 15149477857. The reversal of 15149477853 is 35877494151.

15149477853 is a `hidden beast` number, since 1 + 5 + 1 + 494 + 77 + 85 + 3 = 666.

It is not a de Polignac number, because 15149477853 - 2¹ = 15149477851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15149477853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15149477851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204451 + ... + 268512.

Almost surely, 2^15149477853 is an apocalyptic number.

It is an amenable number.

15149477853 is a deficient number, since it is larger than the sum of its proper divisors (6739296067).

15149477853 is a wasteful number, since it uses less digits than its factorization.

15149477853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476528 (or 476525 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The spelling of 15149477853 in words is "fifteen billion, one hundred forty-nine million, four hundred seventy-seven thousand, eight hundred fifty-three".