79398537970 has 8 divisors (see below), whose sum is σ = 142917368364. Its totient is φ = 31759415184.

The previous prime is 79398537931. The next prime is 79398537971. The reversal of 79398537970 is 7973589397.

It can be written as a sum of positive squares in 2 ways, for example, as 78833477529 + 565060441 = 280773^2 + 23771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 79398537896 and 79398537905.

It is not an unprimeable number, because it can be changed into a prime (79398537971) 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, 3969926889 + ... + 3969926908.

Almost surely, 2^79398537970 is an apocalyptic number.

79398537970 is a deficient number, since it is larger than the sum of its proper divisors (63518830394).

79398537970 is a wasteful number, since it uses less digits than its factorization.

79398537970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7939853804.

The product of its (nonzero) digits is 90016920, while the sum is 67.

The spelling of 79398537970 in words is "seventy-nine billion, three hundred ninety-eight million, five hundred thirty-seven thousand, nine hundred seventy".