647615117622 has 16 divisors (see below), whose sum is σ = 1412978438592. Its totient is φ = 196247005320.

The previous prime is 647615117609. The next prime is 647615117641. The reversal of 647615117622 is 226711516746.

It is a congruent number.

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, 4906175068 + ... + 4906175199.

It is an arithmetic number, because the mean of its divisors is an integer number (88311152412).

Almost surely, 2^647615117622 is an apocalyptic number.

647615117622 is an abundant number, since it is smaller than the sum of its proper divisors (765363320970).

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

647615117622 is a wasteful number, since it uses less digits than its factorization.

647615117622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9812350283.

The product of its digits is 846720, while the sum is 48.

The spelling of 647615117622 in words is "six hundred forty-seven billion, six hundred fifteen million, one hundred seventeen thousand, six hundred twenty-two".