83651986708 has 12 divisors (see below), whose sum is σ = 146394138240. Its totient is φ = 41825090072.

The previous prime is 83651986681. The next prime is 83651986709. The reversal of 83651986708 is 80768915638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83651986709) 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, 9885 + ... + 409147.

It is an arithmetic number, because the mean of its divisors is an integer number (12199511520).

Almost surely, 2^83651986708 is an apocalyptic number.

It is an amenable number.

83651986708 is a deficient number, since it is larger than the sum of its proper divisors (62742151532).

83651986708 is a wasteful number, since it uses less digits than its factorization.

83651986708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451646 (or 451644 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 83651986708 in words is "eighty-three billion, six hundred fifty-one million, nine hundred eighty-six thousand, seven hundred eight".