642651560453 has 16 divisors (see below), whose sum is σ = 734959889664. Its totient is φ = 550468638720.

The previous prime is 642651560431. The next prime is 642651560471. The reversal of 642651560453 is 354065156246.

It is not a de Polignac number, because 642651560453 - 2¹⁴ = 642651544069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 642651560398 and 642651560407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642651560483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106980776 + ... + 106986782.

It is an arithmetic number, because the mean of its divisors is an integer number (45934993104).

Almost surely, 2^642651560453 is an apocalyptic number.

It is an amenable number.

642651560453 is a deficient number, since it is larger than the sum of its proper divisors (92308329211).

642651560453 is a wasteful number, since it uses less digits than its factorization.

642651560453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13892.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 642651560453 in words is "six hundred forty-two billion, six hundred fifty-one million, five hundred sixty thousand, four hundred fifty-three".