6721925970 has 64 divisors (see below), whose sum is σ = 17122720896. Its totient is φ = 1683010560.

The previous prime is 6721925941. The next prime is 6721925983. The reversal of 6721925970 is 795291276.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199057 + ... + 230363.

It is an arithmetic number, because the mean of its divisors is an integer number (267542514).

Almost surely, 2^6721925970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6721925970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8561360448).

6721925970 is an abundant number, since it is smaller than the sum of its proper divisors (10400794926).

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

6721925970 is a wasteful number, since it uses less digits than its factorization.

6721925970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31755.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 6721925970 is about 81987.3525002485. The cubic root of 6721925970 is about 1887.2578554039.

The spelling of 6721925970 in words is "six billion, seven hundred twenty-one million, nine hundred twenty-five thousand, nine hundred seventy".