83780070737 has 16 divisors (see below), whose sum is σ = 94358421504. Its totient is φ = 73696098000.

The previous prime is 83780070721. The next prime is 83780070749. The reversal of 83780070737 is 73707008738.

It is a cyclic number.

It is not a de Polignac number, because 83780070737 - 2⁴ = 83780070721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83780070707) 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, 3161858 + ... + 3188244.

It is an arithmetic number, because the mean of its divisors is an integer number (5897401344).

Almost surely, 2^83780070737 is an apocalyptic number.

It is an amenable number.

83780070737 is a deficient number, since it is larger than the sum of its proper divisors (10578350767).

83780070737 is a wasteful number, since it uses less digits than its factorization.

83780070737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35740.

The product of its (nonzero) digits is 1382976, while the sum is 50.

The spelling of 83780070737 in words is "eighty-three billion, seven hundred eighty million, seventy thousand, seven hundred thirty-seven".