15492615485 has 16 divisors (see below), whose sum is σ = 19577251200. Its totient is φ = 11737192896.

The previous prime is 15492615443. The next prime is 15492615487. The reversal of 15492615485 is 58451629451.

It is a cyclic number.

It is not a de Polignac number, because 15492615485 - 2¹² = 15492611389 is a prime.

It is a super-2 number, since 2×15492615485² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15492615487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223856 + ... + 284774.

It is an arithmetic number, because the mean of its divisors is an integer number (1223578200).

Almost surely, 2^15492615485 is an apocalyptic number.

It is an amenable number.

15492615485 is a deficient number, since it is larger than the sum of its proper divisors (4084635715).

15492615485 is a wasteful number, since it uses less digits than its factorization.

15492615485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63620.

The product of its digits is 1728000, while the sum is 50.

The spelling of 15492615485 in words is "fifteen billion, four hundred ninety-two million, six hundred fifteen thousand, four hundred eighty-five".