653425076861 has 4 divisors (see below), whose sum is σ = 687815870400. Its totient is φ = 619034283324.

The previous prime is 653425076809. The next prime is 653425076929. The reversal of 653425076861 is 168670524356.

It is a happy number.

653425076861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 653425076861 - 2⁶ = 653425076797 is a prime.

It is a super-2 number, since 2×653425076861² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653425076261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17195396741 + ... + 17195396778.

It is an arithmetic number, because the mean of its divisors is an integer number (171953967600).

Almost surely, 2^653425076861 is an apocalyptic number.

It is an amenable number.

653425076861 is a deficient number, since it is larger than the sum of its proper divisors (34390793539).

653425076861 is a wasteful number, since it uses less digits than its factorization.

653425076861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34390793538.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 653425076861 in words is "six hundred fifty-three billion, four hundred twenty-five million, seventy-six thousand, eight hundred sixty-one".