6451637460 has 48 divisors (see below), whose sum is σ = 18552823296. Its totient is φ = 1673937792.

The previous prime is 6451637459. The next prime is 6451637503. The reversal of 6451637460 is 647361546.

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, 1450852 + ... + 1455291.

It is an arithmetic number, because the mean of its divisors is an integer number (386517152).

Almost surely, 2^6451637460 is an apocalyptic number.

6451637460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6451637460 is an abundant number, since it is smaller than the sum of its proper divisors (12101185836).

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

6451637460 is a wasteful number, since it uses less digits than its factorization.

6451637460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906192 (or 2906190 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 6451637460 is about 80322.0857547910. The cubic root of 6451637460 is about 1861.6154943709.

The spelling of 6451637460 in words is "six billion, four hundred fifty-one million, six hundred thirty-seven thousand, four hundred sixty".