15309207052 has 6 divisors (see below), whose sum is σ = 26791112348. Its totient is φ = 7654603524.

The previous prime is 15309207037. The next prime is 15309207071. The reversal of 15309207052 is 25070290351.

It is a super-2 number, since 2×15309207052² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15309206999 and 15309207017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1913650878 + ... + 1913650885.

Almost surely, 2^15309207052 is an apocalyptic number.

It is an amenable number.

15309207052 is a deficient number, since it is larger than the sum of its proper divisors (11481905296).

15309207052 is a wasteful number, since it uses less digits than its factorization.

15309207052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827301767 (or 3827301765 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 15309207052 in words is "fifteen billion, three hundred nine million, two hundred seven thousand, fifty-two".