72702050064 has 160 divisors (see below), whose sum is σ = 220869006336. Its totient is φ = 20171773440.

The previous prime is 72702050059. The next prime is 72702050081. The reversal of 72702050064 is 46005020727.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6794959 + ... + 6805649.

Almost surely, 2^72702050064 is an apocalyptic number.

72702050064 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72702050064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110434503168).

72702050064 is an abundant number, since it is smaller than the sum of its proper divisors (148166956272).

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

72702050064 is a wasteful number, since it uses less digits than its factorization.

72702050064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11293 (or 11287 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 72702050064 in words is "seventy-two billion, seven hundred two million, fifty thousand, sixty-four".