80719842740 has 24 divisors (see below), whose sum is σ = 176881743360. Its totient is φ = 30884113568.

The previous prime is 80719842673. The next prime is 80719842757. The reversal of 80719842740 is 4724891708.

It is a congruent number.

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, 87738500 + ... + 87739419.

It is an arithmetic number, because the mean of its divisors is an integer number (7370072640).

Almost surely, 2^80719842740 is an apocalyptic number.

It is an amenable number.

80719842740 is an abundant number, since it is smaller than the sum of its proper divisors (96161900620).

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

80719842740 is a wasteful number, since it uses less digits than its factorization.

80719842740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175477951 (or 175477949 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 80719842740 in words is "eighty billion, seven hundred nineteen million, eight hundred forty-two thousand, seven hundred forty".