80989779340 has 24 divisors (see below), whose sum is σ = 170083882080. Its totient is φ = 32394893568.

The previous prime is 80989779331. The next prime is 80989779379. The reversal of 80989779340 is 4397798908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236249 + ... + 1300111.

It is an arithmetic number, because the mean of its divisors is an integer number (7086828420).

Almost surely, 2^80989779340 is an apocalyptic number.

It is an amenable number.

80989779340 is an abundant number, since it is smaller than the sum of its proper divisors (89094102740).

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

80989779340 is a wasteful number, since it uses less digits than its factorization.

80989779340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127281 (or 127279 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 80989779340 in words is "eighty billion, nine hundred eighty-nine million, seven hundred seventy-nine thousand, three hundred forty".