15490366772 has 6 divisors (see below), whose sum is σ = 27108141858. Its totient is φ = 7745183384.

The previous prime is 15490366739. The next prime is 15490366811. The reversal of 15490366772 is 27766309451.

It can be written as a sum of positive squares in only one way, i.e., 12869541136 + 2620825636 = 113444^2 + 51194^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15490366772.

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, 1936295843 + ... + 1936295850.

It is an arithmetic number, because the mean of its divisors is an integer number (4518023643).

Almost surely, 2^15490366772 is an apocalyptic number.

It is an amenable number.

15490366772 is a deficient number, since it is larger than the sum of its proper divisors (11617775086).

15490366772 is a wasteful number, since it uses less digits than its factorization.

15490366772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872591697 (or 3872591695 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 15490366772 in words is "fifteen billion, four hundred ninety million, three hundred sixty-six thousand, seven hundred seventy-two".