15542892668 has 24 divisors (see below), whose sum is σ = 29412839232. Its totient is φ = 7158677504.

The previous prime is 15542892667. The next prime is 15542892763. The reversal of 15542892668 is 86629824551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15542892667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2428421 + ... + 2434812.

It is an arithmetic number, because the mean of its divisors is an integer number (1225534968).

Almost surely, 2^15542892668 is an apocalyptic number.

It is an amenable number.

15542892668 is a deficient number, since it is larger than the sum of its proper divisors (13869946564).

15542892668 is a wasteful number, since it uses less digits than its factorization.

15542892668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863301 (or 4863299 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 56.

The spelling of 15542892668 in words is "fifteen billion, five hundred forty-two million, eight hundred ninety-two thousand, six hundred sixty-eight".