77079527423 has 16 divisors (see below), whose sum is σ = 80785437696. Its totient is φ = 73403753280.

The previous prime is 77079527417. The next prime is 77079527429. The reversal of 77079527423 is 32472597077.

It is a Cunningham number, because it is equal to 277632²-1.

It is an interprime number because it is at equal distance from previous prime (77079527417) and next prime (77079527429).

It is a cyclic number.

It is not a de Polignac number, because 77079527423 - 2⁶ = 77079527359 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 (77079527429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6379478 + ... + 6391548.

It is an arithmetic number, because the mean of its divisors is an integer number (5049089856).

Almost surely, 2^77079527423 is an apocalyptic number.

77079527423 is a deficient number, since it is larger than the sum of its proper divisors (3705910273).

77079527423 is a wasteful number, since it uses less digits than its factorization.

77079527423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13294.

The product of its (nonzero) digits is 5186160, while the sum is 53.

The spelling of 77079527423 in words is "seventy-seven billion, seventy-nine million, five hundred twenty-seven thousand, four hundred twenty-three".