86919980077824 has 144 divisors (see below), whose sum is σ = 239399818183680. Its totient is φ = 27975069757440.

The previous prime is 86919980077789. The next prime is 86919980077829. The reversal of 86919980077824 is 42877008991968.

It is a self number, because there is not a number n which added to its sum of digits gives 86919980077824.

It is not an unprimeable number, because it can be changed into a prime (86919980077829) 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, 7952464 + ... + 15397455.

Almost surely, 2^{86919980077824} is an apocalyptic number.

It is an amenable number.

86919980077824 is an abundant number, since it is smaller than the sum of its proper divisors (152479838105856).

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

86919980077824 is a wasteful number, since it uses less digits than its factorization.

86919980077824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23350106 (or 23350092 counting only the distinct ones).

The product of its (nonzero) digits is 877879296, while the sum is 78.

The spelling of 86919980077824 in words is "eighty-six trillion, nine hundred nineteen billion, nine hundred eighty million, seventy-seven thousand, eight hundred twenty-four".