83786612071680 has 216 divisors, whose sum is σ = 331306228885632. Its totient is φ = 19151225597952.

The previous prime is 83786612071663. The next prime is 83786612071681. The reversal of 83786612071680 is 8617021668738.

83786612071680 is a `hidden beast` number, since 8 + 3 + 7 + 8 + 6 + 612 + 0 + 7 + 1 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83786612071681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 519429604 + ... + 519590883.

Almost surely, 2^{83786612071680} is an apocalyptic number.

83786612071680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83786612071680 is an abundant number, since it is smaller than the sum of its proper divisors (247519616813952).

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

83786612071680 is a wasteful number, since it uses less digits than its factorization.

83786612071680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039020521 (or 1039020504 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 83786612071680 in words is "eighty-three trillion, seven hundred eighty-six billion, six hundred twelve million, seventy-one thousand, six hundred eighty".