102724809064 has 32 divisors (see below), whose sum is σ = 197972248320. Its totient is φ = 49942924416.

The previous prime is 102724809041. The next prime is 102724809071. The reversal of 102724809064 is 460908427201.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 102724809064.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592837 + ... + 746260.

It is an arithmetic number, because the mean of its divisors is an integer number (6186632760).

Almost surely, 2^102724809064 is an apocalyptic number.

It is an amenable number.

102724809064 is a deficient number, since it is larger than the sum of its proper divisors (95247439256).

102724809064 is a wasteful number, since it uses less digits than its factorization.

102724809064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339369 (or 1339365 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 102724809064 in words is "one hundred two billion, seven hundred twenty-four million, eight hundred nine thousand, sixty-four".