15446920988 has 6 divisors (see below), whose sum is σ = 27032111736. Its totient is φ = 7723460492.

The previous prime is 15446920949. The next prime is 15446921023. The reversal of 15446920988 is 88902964451.

It is a super-2 number, since 2×15446920988² (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 as a sum of consecutive naturals, namely, 1930865120 + ... + 1930865127.

It is an arithmetic number, because the mean of its divisors is an integer number (4505351956).

Almost surely, 2^15446920988 is an apocalyptic number.

It is an amenable number.

15446920988 is a deficient number, since it is larger than the sum of its proper divisors (11585190748).

15446920988 is a wasteful number, since it uses less digits than its factorization.

15446920988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861730251 (or 3861730249 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 15446920988 in words is "fifteen billion, four hundred forty-six million, nine hundred twenty thousand, nine hundred eighty-eight".