15917484261 has 16 divisors (see below), whose sum is σ = 24277359744. Its totient is φ = 9087400704.

The previous prime is 15917484211. The next prime is 15917484263. The reversal of 15917484261 is 16248471951.

It is not a de Polignac number, because 15917484261 - 2⁷ = 15917484133 is a prime.

It is a super-2 number, since 2×15917484261² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15917484261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15917484263) 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, 322440 + ... + 368513.

It is an arithmetic number, because the mean of its divisors is an integer number (1517334984).

Almost surely, 2^15917484261 is an apocalyptic number.

It is an amenable number.

15917484261 is a deficient number, since it is larger than the sum of its proper divisors (8359875483).

15917484261 is a wasteful number, since it uses less digits than its factorization.

15917484261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692060.

The product of its digits is 483840, while the sum is 48.

The spelling of 15917484261 in words is "fifteen billion, nine hundred seventeen million, four hundred eighty-four thousand, two hundred sixty-one".