15493641692 has 12 divisors (see below), whose sum is σ = 27115406976. Its totient is φ = 7746382560.

The previous prime is 15493641677. The next prime is 15493641773. The reversal of 15493641692 is 29614639451.

It is a self number, because there is not a number n which added to its sum of digits gives 15493641692.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22313 + ... + 177440.

It is an arithmetic number, because the mean of its divisors is an integer number (2259617248).

Almost surely, 2^15493641692 is an apocalyptic number.

It is an amenable number.

15493641692 is a deficient number, since it is larger than the sum of its proper divisors (11621765284).

15493641692 is a wasteful number, since it uses less digits than its factorization.

15493641692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219148 (or 219146 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The spelling of 15493641692 in words is "fifteen billion, four hundred ninety-three million, six hundred forty-one thousand, six hundred ninety-two".