879598625930781 has 4 divisors (see below), whose sum is σ = 1172798167907712. Its totient is φ = 586399083953852.

The previous prime is 879598625930777. The next prime is 879598625930789. The reversal of 879598625930781 is 187039526895978.

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 879598625930781 - 2² = 879598625930777 is a prime.

It is a super-2 number, since 2×879598625930781² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879598625930789) 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, 146599770988461 + ... + 146599770988466.

It is an arithmetic number, because the mean of its divisors is an integer number (293199541976928).

Almost surely, 2^{879598625930781} is an apocalyptic number.

It is an amenable number.

879598625930781 is a deficient number, since it is larger than the sum of its proper divisors (293199541976931).

879598625930781 is a wasteful number, since it uses less digits than its factorization.

879598625930781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293199541976930.

The product of its (nonzero) digits is 16460236800, while the sum is 87.

The spelling of 879598625930781 in words is "eight hundred seventy-nine trillion, five hundred ninety-eight billion, six hundred twenty-five million, nine hundred thirty thousand, seven hundred eighty-one".