77154578704 has 80 divisors (see below), whose sum is σ = 178114349952. Its totient is φ = 31687778304.

The previous prime is 77154578663. The next prime is 77154578717. The reversal of 77154578704 is 40787545177.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104112 + ... + 406384.

Almost surely, 2^77154578704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77154578704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89057174976).

77154578704 is an abundant number, since it is smaller than the sum of its proper divisors (100959771248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77154578704 is a wasteful number, since it uses less digits than its factorization.

77154578704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302384 (or 302378 counting only the distinct ones).

The product of its (nonzero) digits is 7683200, while the sum is 55.

The spelling of 77154578704 in words is "seventy-seven billion, one hundred fifty-four million, five hundred seventy-eight thousand, seven hundred four".