79780195498 has 16 divisors (see below), whose sum is σ = 119908584576. Its totient is φ = 39810709440.

The previous prime is 79780195493. The next prime is 79780195531. The reversal of 79780195498 is 89459108797.

It is not an unprimeable number, because it can be changed into a prime (79780195493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4867465 + ... + 4883827.

It is an arithmetic number, because the mean of its divisors is an integer number (7494286536).

Almost surely, 2^79780195498 is an apocalyptic number.

79780195498 is a deficient number, since it is larger than the sum of its proper divisors (40128389078).

79780195498 is a wasteful number, since it uses less digits than its factorization.

79780195498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21069.

The product of its (nonzero) digits is 45722880, while the sum is 67.

The spelling of 79780195498 in words is "seventy-nine billion, seven hundred eighty million, one hundred ninety-five thousand, four hundred ninety-eight".