52642909786 has 4 divisors (see below), whose sum is σ = 78964364682. Its totient is φ = 26321454892.

The previous prime is 52642909771. The next prime is 52642909793. The reversal of 52642909786 is 68790924625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48100823761 + 4542086025 = 219319^2 + 67395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52642909786.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13160727445 + ... + 13160727448.

Almost surely, 2^52642909786 is an apocalyptic number.

52642909786 is a deficient number, since it is larger than the sum of its proper divisors (26321454896).

52642909786 is a wasteful number, since it uses less digits than its factorization.

52642909786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26321454895.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 52642909786 in words is "fifty-two billion, six hundred forty-two million, nine hundred nine thousand, seven hundred eighty-six".