648446842510 has 32 divisors (see below), whose sum is σ = 1192187123712. Its totient is φ = 253828379040.

The previous prime is 648446842501. The next prime is 648446842607. The reversal of 648446842510 is 15248644846.

It is a super-2 number, since 2×648446842510² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 3880749 + ... + 4044391.

It is an arithmetic number, because the mean of its divisors is an integer number (37255847616).

Almost surely, 2^648446842510 is an apocalyptic number.

648446842510 is a deficient number, since it is larger than the sum of its proper divisors (543740281202).

648446842510 is a wasteful number, since it uses less digits than its factorization.

648446842510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172128.

The product of its (nonzero) digits is 5898240, while the sum is 52.

The spelling of 648446842510 in words is "six hundred forty-eight billion, four hundred forty-six million, eight hundred forty-two thousand, five hundred ten".