79210725136 has 45 divisors (see below), whose sum is σ = 155820019719. Its totient is φ = 39008138400.

The previous prime is 79210725131. The next prime is 79210725137. The reversal of 79210725136 is 63152701297.

The square root of 79210725136 is 281444.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79210725092 and 79210725101.

It is not an unprimeable number, because it can be changed into a prime (79210725131) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 79929601 + ... + 79930591.

Almost surely, 2^79210725136 is an apocalyptic number.

79210725136 is the 281444-th square number.

It is an amenable number.

79210725136 is a deficient number, since it is larger than the sum of its proper divisors (76609294583).

79210725136 is an frugal number, since it uses more digits than its factorization.

79210725136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 79210725136 in words is "seventy-nine billion, two hundred ten million, seven hundred twenty-five thousand, one hundred thirty-six".