6461371730 has 64 divisors (see below), whose sum is σ = 13504485888. Its totient is φ = 2199797760.

The previous prime is 6461371729. The next prime is 6461371751. The reversal of 6461371730 is 371731646.

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, 351959 + ... + 369861.

It is an arithmetic number, because the mean of its divisors is an integer number (211007592).

Almost surely, 2^6461371730 is an apocalyptic number.

6461371730 is an abundant number, since it is smaller than the sum of its proper divisors (7043114158).

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

6461371730 is a wasteful number, since it uses less digits than its factorization.

6461371730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 6461371730 is about 80382.6581421640. The cubic root of 6461371730 is about 1862.5512961564.

The spelling of 6461371730 in words is "six billion, four hundred sixty-one million, three hundred seventy-one thousand, seven hundred thirty".