77752108551 has 16 divisors (see below), whose sum is σ = 111975360224. Its totient is φ = 47705462784.

The previous prime is 77752108549. The next prime is 77752108559. The reversal of 77752108551 is 15580125777.

It is not a de Polignac number, because 77752108551 - 2¹ = 77752108549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77752108551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77752108559) 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, 2944786 + ... + 2971071.

It is an arithmetic number, because the mean of its divisors is an integer number (6998460014).

Almost surely, 2^77752108551 is an apocalyptic number.

77752108551 is a deficient number, since it is larger than the sum of its proper divisors (34223251673).

77752108551 is a wasteful number, since it uses less digits than its factorization.

77752108551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916210.

The product of its (nonzero) digits is 686000, while the sum is 48.

The spelling of 77752108551 in words is "seventy-seven billion, seven hundred fifty-two million, one hundred eight thousand, five hundred fifty-one".