15954121086 has 16 divisors (see below), whose sum is σ = 31999674000. Its totient is φ = 5302801728.

The previous prime is 15954121067. The next prime is 15954121111. The reversal of 15954121086 is 68012145951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3807391 + ... + 3811578.

It is an arithmetic number, because the mean of its divisors is an integer number (1999979625).

Almost surely, 2^15954121086 is an apocalyptic number.

15954121086 is an abundant number, since it is smaller than the sum of its proper divisors (16045552914).

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

15954121086 is a wasteful number, since it uses less digits than its factorization.

15954121086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7619323.

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 15954121086 in words is "fifteen billion, nine hundred fifty-four million, one hundred twenty-one thousand, eighty-six".