12916557723 has 8 divisors (see below), whose sum is σ = 17274108736. Its totient is φ = 8585022600.

The previous prime is 12916557707. The next prime is 12916557727. The reversal of 12916557723 is 32775561921.

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

It is not a de Polignac number, because 12916557723 - 2⁴ = 12916557707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12916557727) 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, 6502813 + ... + 6504798.

It is an arithmetic number, because the mean of its divisors is an integer number (2159263592).

Almost surely, 2^12916557723 is an apocalyptic number.

12916557723 is a deficient number, since it is larger than the sum of its proper divisors (4357551013).

12916557723 is a wasteful number, since it uses less digits than its factorization.

12916557723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13007945.

The product of its digits is 793800, while the sum is 48.

The spelling of 12916557723 in words is "twelve billion, nine hundred sixteen million, five hundred fifty-seven thousand, seven hundred twenty-three".