83818962780 has 48 divisors (see below), whose sum is σ = 268220682240. Its totient is φ = 19158619968.

The previous prime is 83818962751. The next prime is 83818962781. The reversal of 83818962780 is 8726981838.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83818962781) 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, 99784060 + ... + 99784899.

It is an arithmetic number, because the mean of its divisors is an integer number (5587930880).

Almost surely, 2^83818962780 is an apocalyptic number.

It is an amenable number.

83818962780 is an abundant number, since it is smaller than the sum of its proper divisors (184401719460).

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

83818962780 is a wasteful number, since it uses less digits than its factorization.

83818962780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199568978 (or 199568976 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 83818962780 in words is "eighty-three billion, eight hundred eighteen million, nine hundred sixty-two thousand, seven hundred eighty".