64470034772 has 48 divisors (see below), whose sum is σ = 132757586304. Its totient is φ = 27007344000.

The previous prime is 64470034751. The next prime is 64470034777. The reversal of 64470034772 is 27743007446.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64470034777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271622 + ... + 450242.

It is an arithmetic number, because the mean of its divisors is an integer number (2765783048).

Almost surely, 2^64470034772 is an apocalyptic number.

It is an amenable number.

64470034772 is an abundant number, since it is smaller than the sum of its proper divisors (68287551532).

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

64470034772 is a wasteful number, since it uses less digits than its factorization.

64470034772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179280 (or 179278 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 44.

The spelling of 64470034772 in words is "sixty-four billion, four hundred seventy million, thirty-four thousand, seven hundred seventy-two".