20354257713464 has 32 divisors (see below), whose sum is σ = 38669448979200. Its totient is φ = 10042552147680.

The previous prime is 20354257713457. The next prime is 20354257713487. The reversal of 20354257713464 is 46431775245302.

It is a super-2 number, since 2×20354257713464² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8113442 + ... + 10321649.

It is an arithmetic number, because the mean of its divisors is an integer number (1208420280600).

Almost surely, 2^{20354257713464} is an apocalyptic number.

It is an amenable number.

20354257713464 is a deficient number, since it is larger than the sum of its proper divisors (18315191265736).

20354257713464 is a wasteful number, since it uses less digits than its factorization.

20354257713464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18436923 (or 18436919 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 53.

The spelling of 20354257713464 in words is "twenty trillion, three hundred fifty-four billion, two hundred fifty-seven million, seven hundred thirteen thousand, four hundred sixty-four".