15451198068 has 48 divisors (see below), whose sum is σ = 38711240064. Its totient is φ = 4779156480.

The previous prime is 15451197907. The next prime is 15451198109. The reversal of 15451198068 is 86089115451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518905 + ... + 547872.

It is an arithmetic number, because the mean of its divisors is an integer number (806484168).

Almost surely, 2^15451198068 is an apocalyptic number.

It is an amenable number.

15451198068 is an abundant number, since it is smaller than the sum of its proper divisors (23260041996).

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

15451198068 is a wasteful number, since it uses less digits than its factorization.

15451198068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066872 (or 1066870 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 48.

The spelling of 15451198068 in words is "fifteen billion, four hundred fifty-one million, one hundred ninety-eight thousand, sixty-eight".