647461535245152 has 192 divisors, whose sum is σ = 1748911241919744. Its totient is φ = 209638486886400.

The previous prime is 647461535245061. The next prime is 647461535245159. The reversal of 647461535245152 is 251542535164746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647461535245159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10887715323 + ... + 10887774789.

It is an arithmetic number, because the mean of its divisors is an integer number (9108912718332).

Almost surely, 2^{647461535245152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 647461535245152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874455620959872).

647461535245152 is an abundant number, since it is smaller than the sum of its proper divisors (1101449706674592).

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

647461535245152 is a wasteful number, since it uses less digits than its factorization.

647461535245152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80821 (or 80813 counting only the distinct ones).

The product of its digits is 120960000, while the sum is 60.

The spelling of 647461535245152 in words is "six hundred forty-seven trillion, four hundred sixty-one billion, five hundred thirty-five million, two hundred forty-five thousand, one hundred fifty-two".