645194200710 has 64 divisors (see below), whose sum is σ = 1642279173120. Its totient is φ = 161873374080.

The previous prime is 645194200667. The next prime is 645194200727. The reversal of 645194200710 is 17002491546.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7622370 + ... + 7706549.

It is an arithmetic number, because the mean of its divisors is an integer number (25660612080).

Almost surely, 2^645194200710 is an apocalyptic number.

645194200710 is an abundant number, since it is smaller than the sum of its proper divisors (997084972410).

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

645194200710 is a wasteful number, since it uses less digits than its factorization.

645194200710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15329013.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 645194200710 in words is "six hundred forty-five billion, one hundred ninety-four million, two hundred thousand, seven hundred ten".