80140140732 has 48 divisors (see below), whose sum is σ = 187779271680. Its totient is φ = 26601233088.

The previous prime is 80140140659. The next prime is 80140140733. The reversal of 80140140732 is 23704104108.

It is a self number, because there is not a number n which added to its sum of digits gives 80140140732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80140140733) 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, 15092494 + ... + 15097802.

It is an arithmetic number, because the mean of its divisors is an integer number (3912068160).

Almost surely, 2^80140140732 is an apocalyptic number.

It is an amenable number.

80140140732 is an abundant number, since it is smaller than the sum of its proper divisors (107639130948).

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

80140140732 is a wasteful number, since it uses less digits than its factorization.

80140140732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10362 (or 10360 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 80140140732 in words is "eighty billion, one hundred forty million, one hundred forty thousand, seven hundred thirty-two".