15148789922 has 18 divisors (see below), whose sum is σ = 26435218833. Its totient is φ = 6491816352.

The previous prime is 15148789891. The next prime is 15148790029. The reversal of 15148789922 is 22998784151.

It can be written as a sum of positive squares in 2 ways, for example, as 12680786881 + 2468003041 = 112609^2 + 49679^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=87031.

It is a super-2 number, since 2×15148789922² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1212218 + ... + 1224650.

Almost surely, 2^15148789922 is an apocalyptic number.

15148789922 is a deficient number, since it is larger than the sum of its proper divisors (11286428911).

15148789922 is an frugal number, since it uses more digits than its factorization.

15148789922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24882 (or 12442 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 56.

The spelling of 15148789922 in words is "fifteen billion, one hundred forty-eight million, seven hundred eighty-nine thousand, nine hundred twenty-two".