76538886671984 has 80 divisors (see below), whose sum is σ = 163181065076736. Its totient is φ = 34488547027200.

The previous prime is 76538886671957. The next prime is 76538886671987. The reversal of 76538886671984 is 48917668883567.

It is a junction number, because it is equal to n+sod(n) for n = 76538886671896 and 76538886671905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76538886671987) 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, 26265329 + ... + 29033519.

Almost surely, 2^{76538886671984} 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 76538886671984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81590532538368).

76538886671984 is an abundant number, since it is smaller than the sum of its proper divisors (86642178404752).

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

76538886671984 is a wasteful number, since it uses less digits than its factorization.

76538886671984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769574 (or 2769568 counting only the distinct ones).

The product of its digits is 23410114560, while the sum is 86.

The spelling of 76538886671984 in words is "seventy-six trillion, five hundred thirty-eight billion, eight hundred eighty-six million, six hundred seventy-one thousand, nine hundred eighty-four".