87782078712 has 16 divisors (see below), whose sum is σ = 219455196840. Its totient is φ = 29260692896.

The previous prime is 87782078711. The next prime is 87782078719. The reversal of 87782078712 is 21787028778.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87782078711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1828793283 + ... + 1828793330.

Almost surely, 2^87782078712 is an apocalyptic number.

It is an amenable number.

87782078712 is an abundant number, since it is smaller than the sum of its proper divisors (131673118128).

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

87782078712 is a wasteful number, since it uses less digits than its factorization.

87782078712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657586622 (or 3657586618 counting only the distinct ones).

The product of its (nonzero) digits is 4917248, while the sum is 57.

The spelling of 87782078712 in words is "eighty-seven billion, seven hundred eighty-two million, seventy-eight thousand, seven hundred twelve".