64730015674 has 32 divisors (see below), whose sum is σ = 101296641600. Its totient is φ = 31020910704.

The previous prime is 64730015663. The next prime is 64730015741. The reversal of 64730015674 is 47651003746.

It is a self number, because there is not a number n which added to its sum of digits gives 64730015674.

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, 6775369 + ... + 6784915.

It is an arithmetic number, because the mean of its divisors is an integer number (3165520050).

Almost surely, 2^64730015674 is an apocalyptic number.

64730015674 is a deficient number, since it is larger than the sum of its proper divisors (36566625926).

64730015674 is an equidigital number, since it uses as much as digits as its factorization.

64730015674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9775 (or 9717 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 64730015674 in words is "sixty-four billion, seven hundred thirty million, fifteen thousand, six hundred seventy-four".