868778711619 has 128 divisors (see below), whose sum is σ = 1466771324928. Its totient is φ = 445296683520.

The previous prime is 868778711617. The next prime is 868778711629. The reversal of 868778711619 is 916117877868.

868778711619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 868778711619 - 2¹ = 868778711617 is a prime.

It is a super-2 number, since 2×868778711619² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (868778711617) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 366417504 + ... + 366419874.

It is an arithmetic number, because the mean of its divisors is an integer number (11459150976).

Almost surely, 2^868778711619 is an apocalyptic number.

868778711619 is a deficient number, since it is larger than the sum of its proper divisors (597992613309).

868778711619 is a wasteful number, since it uses less digits than its factorization.

868778711619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737.

The product of its digits is 56899584, while the sum is 69.

The spelling of 868778711619 in words is "eight hundred sixty-eight billion, seven hundred seventy-eight million, seven hundred eleven thousand, six hundred nineteen".