20345512746313 has 8 divisors (see below), whose sum is σ = 20455437344256. Its totient is φ = 20235623602800.

The previous prime is 20345512746217. The next prime is 20345512746337. The reversal of 20345512746313 is 31364721554302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20345512746313 - 2²⁵ = 20345479191881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20345512746373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7712406 + ... + 10008607.

It is an arithmetic number, because the mean of its divisors is an integer number (2556929668032).

Almost surely, 2^{20345512746313} is an apocalyptic number.

It is an amenable number.

20345512746313 is a deficient number, since it is larger than the sum of its proper divisors (109924597943).

20345512746313 is a wasteful number, since it uses less digits than its factorization.

20345512746313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17727215.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 20345512746313 in words is "twenty trillion, three hundred forty-five billion, five hundred twelve million, seven hundred forty-six thousand, three hundred thirteen".