79154145254 has 4 divisors (see below), whose sum is σ = 118731217884. Its totient is φ = 39577072626.

The previous prime is 79154145227. The next prime is 79154145277. The reversal of 79154145254 is 45254145197.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 79154145199 and 79154145208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19788536312 + ... + 19788536315.

It is an arithmetic number, because the mean of its divisors is an integer number (29682804471).

Almost surely, 2^79154145254 is an apocalyptic number.

79154145254 is a deficient number, since it is larger than the sum of its proper divisors (39577072630).

79154145254 is a wasteful number, since it uses less digits than its factorization.

79154145254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39577072629.

The product of its digits is 1008000, while the sum is 47.

The spelling of 79154145254 in words is "seventy-nine billion, one hundred fifty-four million, one hundred forty-five thousand, two hundred fifty-four".