79421253000 has 64 divisors (see below), whose sum is σ = 247794318720. Its totient is φ = 21179000000.

The previous prime is 79421252957. The next prime is 79421253049. The reversal of 79421253000 is 35212497.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13233876 + ... + 13239875.

It is an arithmetic number, because the mean of its divisors is an integer number (3871786230).

Almost surely, 2^79421253000 is an apocalyptic number.

It is an amenable number.

79421253000 is an abundant number, since it is smaller than the sum of its proper divisors (168373065720).

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

79421253000 is a wasteful number, since it uses less digits than its factorization.

79421253000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26473775 (or 26473761 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 79421253000 its reverse (35212497), we get a palindrome (79456465497).

The spelling of 79421253000 in words is "seventy-nine billion, four hundred twenty-one million, two hundred fifty-three thousand".