645120526362 has 32 divisors (see below), whose sum is σ = 1419053997312. Its totient is φ = 194275247424.

The previous prime is 645120526357. The next prime is 645120526381. The reversal of 645120526362 is 263625021546.

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, 87983313 + ... + 87990644.

It is an arithmetic number, because the mean of its divisors is an integer number (44345437416).

Almost surely, 2^645120526362 is an apocalyptic number.

645120526362 is an abundant number, since it is smaller than the sum of its proper divisors (773933470950).

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

645120526362 is a wasteful number, since it uses less digits than its factorization.

645120526362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175974022.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 645120526362 in words is "six hundred forty-five billion, one hundred twenty million, five hundred twenty-six thousand, three hundred sixty-two".