80705867835 has 32 divisors (see below), whose sum is σ = 131782452480. Its totient is φ = 42163936128.

The previous prime is 80705867771. The next prime is 80705867839. The reversal of 80705867835 is 53876850708.

It is not a de Polignac number, because 80705867835 - 2⁶ = 80705867771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80705867839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89337 + ... + 411573.

It is an arithmetic number, because the mean of its divisors is an integer number (4118201640).

Almost surely, 2^80705867835 is an apocalyptic number.

80705867835 is a deficient number, since it is larger than the sum of its proper divisors (51076584645).

80705867835 is a wasteful number, since it uses less digits than its factorization.

80705867835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322587.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 80705867835 in words is "eighty billion, seven hundred five million, eight hundred sixty-seven thousand, eight hundred thirty-five".