879121211604 has 12 divisors (see below), whose sum is σ = 2051282827104. Its totient is φ = 293040403864.

The previous prime is 879121211539. The next prime is 879121211609. The reversal of 879121211604 is 406112121978.

879121211604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879121211609) 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, 36630050472 + ... + 36630050495.

It is an arithmetic number, because the mean of its divisors is an integer number (170940235592).

Almost surely, 2^879121211604 is an apocalyptic number.

It is an amenable number.

879121211604 is an abundant number, since it is smaller than the sum of its proper divisors (1172161615500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

879121211604 is a wasteful number, since it uses less digits than its factorization.

879121211604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73260100974 (or 73260100972 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 879121211604 in words is "eight hundred seventy-nine billion, one hundred twenty-one million, two hundred eleven thousand, six hundred four".