79154151093121 has 32 divisors (see below), whose sum is σ = 86021890891776. Its totient is φ = 72400765248000.

The previous prime is 79154151093071. The next prime is 79154151093133. The reversal of 79154151093121 is 12139015145197.

It is a cyclic number.

It is not a de Polignac number, because 79154151093121 - 2²¹ = 79154148995969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79154151093821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5542612501 + ... + 5542626781.

It is an arithmetic number, because the mean of its divisors is an integer number (2688184090368).

Almost surely, 2^{79154151093121} is an apocalyptic number.

It is an amenable number.

79154151093121 is a deficient number, since it is larger than the sum of its proper divisors (6867739798655).

79154151093121 is a wasteful number, since it uses less digits than its factorization.

79154151093121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22993.

The product of its (nonzero) digits is 340200, while the sum is 49.

The spelling of 79154151093121 in words is "seventy-nine trillion, one hundred fifty-four billion, one hundred fifty-one million, ninety-three thousand, one hundred twenty-one".