79754029561 has 8 divisors (see below), whose sum is σ = 83486274048. Its totient is φ = 76094256000.

The previous prime is 79754029543. The next prime is 79754029571. The reversal of 79754029561 is 16592045797.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79754029561 - 2¹⁵ = 79753996793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79754029571) 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, 18115480 + ... + 18119881.

It is an arithmetic number, because the mean of its divisors is an integer number (10435784256).

Almost surely, 2^79754029561 is an apocalyptic number.

79754029561 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79754029561 is the 126297-th centered decagonal number.

It is an amenable number.

79754029561 is a deficient number, since it is larger than the sum of its proper divisors (3732244487).

79754029561 is a wasteful number, since it uses less digits than its factorization.

79754029561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36235463.

The product of its (nonzero) digits is 4762800, while the sum is 55.

The spelling of 79754029561 in words is "seventy-nine billion, seven hundred fifty-four million, twenty-nine thousand, five hundred sixty-one".