15765643052 has 6 divisors (see below), whose sum is σ = 27589875348. Its totient is φ = 7882821524.

The previous prime is 15765643021. The next prime is 15765643079. The reversal of 15765643052 is 25034656751.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15765642994 and 15765643012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970705378 + ... + 1970705385.

It is an arithmetic number, because the mean of its divisors is an integer number (4598312558).

Almost surely, 2^15765643052 is an apocalyptic number.

It is an amenable number.

15765643052 is a deficient number, since it is larger than the sum of its proper divisors (11824232296).

15765643052 is a wasteful number, since it uses less digits than its factorization.

15765643052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941410767 (or 3941410765 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 15765643052 in words is "fifteen billion, seven hundred sixty-five million, six hundred forty-three thousand, fifty-two".