64742043724580 has 12 divisors (see below), whose sum is σ = 135958291821660. Its totient is φ = 25896817489824.

The previous prime is 64742043724577. The next prime is 64742043724613. The reversal of 64742043724580 is 8542734024746.

64742043724580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13962538275904 + 50779505448676 = 3736648^2 + 7125974^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618551093095 + ... + 1618551093134.

It is an arithmetic number, because the mean of its divisors is an integer number (11329857651805).

Almost surely, 2^{64742043724580} is an apocalyptic number.

It is an amenable number.

64742043724580 is an abundant number, since it is smaller than the sum of its proper divisors (71216248097080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64742043724580 is a wasteful number, since it uses less digits than its factorization.

64742043724580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237102186238 (or 3237102186236 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 56.

The spelling of 64742043724580 in words is "sixty-four trillion, seven hundred forty-two billion, forty-three million, seven hundred twenty-four thousand, five hundred eighty".