77019906755 has 24 divisors (see below), whose sum is σ = 102576286176. Its totient is φ = 55470602880.

The previous prime is 77019906739. The next prime is 77019906763. The reversal of 77019906755 is 55760991077.

It is not a de Polignac number, because 77019906755 - 2⁴ = 77019906739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77019906755.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 555674 + ... + 680303.

It is an arithmetic number, because the mean of its divisors is an integer number (4274011924).

Almost surely, 2^77019906755 is an apocalyptic number.

77019906755 is a deficient number, since it is larger than the sum of its proper divisors (25556379421).

77019906755 is a wasteful number, since it uses less digits than its factorization.

77019906755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236107 (or 1236096 counting only the distinct ones).

The product of its (nonzero) digits is 4167450, while the sum is 56.

The spelling of 77019906755 in words is "seventy-seven billion, nineteen million, nine hundred six thousand, seven hundred fifty-five".