6461908996 has 9 divisors (see below), whose sum is σ = 11308622101. Its totient is φ = 3230874112.

The previous prime is 6461908969. The next prime is 6461909023. The reversal of 6461908996 is 6998091646.

The square root of 6461908996 is 80386.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (6461908969) and next prime (6461909023).

It can be written as a sum of positive squares in only one way, i.e., 1440202500 + 5021706496 = 37950^2 + 70864^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6461908996.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 140676 + ... + 180868.

Almost surely, 2^6461908996 is an apocalyptic number.

6461908996 is the 80386-th square number.

It is an amenable number.

6461908996 is a deficient number, since it is larger than the sum of its proper divisors (4846713105).

6461908996 is an frugal number, since it uses more digits than its factorization.

6461908996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80390 (or 40195 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 58.

The cubic root of 6461908996 is about 1862.6029187216.

The spelling of 6461908996 in words is "six billion, four hundred sixty-one million, nine hundred eight thousand, nine hundred ninety-six".