77172428474959 has 8 divisors (see below), whose sum is σ = 79040224267200. Its totient is φ = 75314042234016.

The previous prime is 77172428474929. The next prime is 77172428474971. The reversal of 77172428474959 is 95947482427177.

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 77172428474959 - 2⁷ = 77172428474831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77172428474929) 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, 2352371224 + ... + 2352404029.

It is an arithmetic number, because the mean of its divisors is an integer number (9880028033400).

Almost surely, 2^{77172428474959} is an apocalyptic number.

77172428474959 is a deficient number, since it is larger than the sum of its proper divisors (1867795792241).

77172428474959 is a wasteful number, since it uses less digits than its factorization.

77172428474959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704775649.

The product of its digits is 1991485440, while the sum is 76.

The spelling of 77172428474959 in words is "seventy-seven trillion, one hundred seventy-two billion, four hundred twenty-eight million, four hundred seventy-four thousand, nine hundred fifty-nine".