645113542337514 has 24 divisors (see below), whose sum is σ = 1397845259533632. Its totient is φ = 215022578040360.

The previous prime is 645113542337513. The next prime is 645113542337519. The reversal of 645113542337514 is 415733245311546.

645113542337514 is a `hidden beast` number, since 6 + 4 + 5 + 1 + 1 + 354 + 233 + 7 + 51 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (645113542337513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1272189922 + ... + 1272696909.

It is an arithmetic number, because the mean of its divisors is an integer number (58243552480568).

Almost surely, 2^{645113542337514} is an apocalyptic number.

645113542337514 is an abundant number, since it is smaller than the sum of its proper divisors (752731717196118).

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

645113542337514 is a wasteful number, since it uses less digits than its factorization.

645113542337514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544900922 (or 2544900919 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 54.

The spelling of 645113542337514 in words is "six hundred forty-five trillion, one hundred thirteen billion, five hundred forty-two million, three hundred thirty-seven thousand, five hundred fourteen".