172926742918 has 32 divisors (see below), whose sum is σ = 279356762880. Its totient is φ = 80036100000.

The previous prime is 172926742903. The next prime is 172926742949. The reversal of 172926742918 is 819247629271.

It is a congruent number.

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, 102993 + ... + 597043.

It is an arithmetic number, because the mean of its divisors is an integer number (8729898840).

Almost surely, 2^172926742918 is an apocalyptic number.

172926742918 is a deficient number, since it is larger than the sum of its proper divisors (106430019962).

172926742918 is a wasteful number, since it uses less digits than its factorization.

172926742918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494284.

The product of its digits is 6096384, while the sum is 58.

The spelling of 172926742918 in words is "one hundred seventy-two billion, nine hundred twenty-six million, seven hundred forty-two thousand, nine hundred eighteen".