647874153380 has 12 divisors (see below), whose sum is σ = 1360535722140. Its totient is φ = 259149661344.

The previous prime is 647874153371. The next prime is 647874153391. The reversal of 647874153380 is 83351478746.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 155092617124 + 492781536256 = 393818^2 + 701984^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16196853815 + ... + 16196853854.

It is an arithmetic number, because the mean of its divisors is an integer number (113377976845).

Almost surely, 2^647874153380 is an apocalyptic number.

It is an amenable number.

647874153380 is an abundant number, since it is smaller than the sum of its proper divisors (712661568760).

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

647874153380 is a wasteful number, since it uses less digits than its factorization.

647874153380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32393707678 (or 32393707676 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 647874153380 in words is "six hundred forty-seven billion, eight hundred seventy-four million, one hundred fifty-three thousand, three hundred eighty".