6461748940 has 24 divisors (see below), whose sum is σ = 13858391232. Its totient is φ = 2529705600.

The previous prime is 6461748929. The next prime is 6461748973. The reversal of 6461748940 is 498471646.

It is a super-2 number, since 2×6461748940² = 83508398727182247200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3436161 + ... + 3438040.

It is an arithmetic number, because the mean of its divisors is an integer number (577432968).

Almost surely, 2^6461748940 is an apocalyptic number.

It is an amenable number.

6461748940 is an abundant number, since it is smaller than the sum of its proper divisors (7396642292).

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

6461748940 is a wasteful number, since it uses less digits than its factorization.

6461748940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874257 (or 6874255 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 6461748940 is about 80385.0044473470. The cubic root of 6461748940 is about 1862.5875402303.

The spelling of 6461748940 in words is "six billion, four hundred sixty-one million, seven hundred forty-eight thousand, nine hundred forty".