77788856051323 has 4 divisors (see below), whose sum is σ = 77798352928768. Its totient is φ = 77779359173880.

The previous prime is 77788856051281. The next prime is 77788856051359. The reversal of 77788856051323 is 32315065888777.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77788856051323 - 2²¹ = 77788853954171 is a prime.

It is a super-2 number, since 2×77788856051323² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77788856051393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4748426436 + ... + 4748442817.

It is an arithmetic number, because the mean of its divisors is an integer number (19449588232192).

Almost surely, 2^{77788856051323} is an apocalyptic number.

77788856051323 is a deficient number, since it is larger than the sum of its proper divisors (9496877445).

77788856051323 is an equidigital number, since it uses as much as digits as its factorization.

77788856051323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9496877444.

The product of its (nonzero) digits is 474163200, while the sum is 70.

The spelling of 77788856051323 in words is "seventy-seven trillion, seven hundred eighty-eight billion, eight hundred fifty-six million, fifty-one thousand, three hundred twenty-three".