6721468734 has 32 divisors (see below), whose sum is σ = 13609739520. Its totient is φ = 2212805952.

The previous prime is 6721468723. The next prime is 6721468753. The reversal of 6721468734 is 4378641276.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219874 + ... + 248570.

It is an arithmetic number, because the mean of its divisors is an integer number (425304360).

Almost surely, 2^6721468734 is an apocalyptic number.

6721468734 is an abundant number, since it is smaller than the sum of its proper divisors (6888270786).

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

6721468734 is a wasteful number, since it uses less digits than its factorization.

6721468734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29184.

The product of its digits is 1354752, while the sum is 48.

The square root of 6721468734 is about 81984.5639983528. The cubic root of 6721468734 is about 1887.2150630156.

The spelling of 6721468734 in words is "six billion, seven hundred twenty-one million, four hundred sixty-eight thousand, seven hundred thirty-four".