15915504486 has 96 divisors (see below), whose sum is σ = 37330771968. Its totient is φ = 4510289280.

The previous prime is 15915504469. The next prime is 15915504497. The reversal of 15915504486 is 68440551951.

It is a super-2 number, since 2×15915504486² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31640911 + ... + 31641413.

It is an arithmetic number, because the mean of its divisors is an integer number (388862208).

Almost surely, 2^15915504486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15915504486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18665385984).

15915504486 is an abundant number, since it is smaller than the sum of its proper divisors (21415267482).

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

15915504486 is a wasteful number, since it uses less digits than its factorization.

15915504486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1179 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 15915504486 in words is "fifteen billion, nine hundred fifteen million, five hundred four thousand, four hundred eighty-six".