77329823479 has 2 divisors, whose sum is σ = 77329823480. Its totient is φ = 77329823478.

The previous prime is 77329823447. The next prime is 77329823489. The reversal of 77329823479 is 97432892377.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77329823479 - 2⁵ = 77329823447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77329823419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38664911739 + 38664911740.

It is an arithmetic number, because the mean of its divisors is an integer number (38664911740).

Almost surely, 2^77329823479 is an apocalyptic number.

77329823479 is a deficient number, since it is larger than the sum of its proper divisors (1).

77329823479 is an equidigital number, since it uses as much as digits as its factorization.

77329823479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32006016, while the sum is 61.

The spelling of 77329823479 in words is "seventy-seven billion, three hundred twenty-nine million, eight hundred twenty-three thousand, four hundred seventy-nine".