80688762939 has 8 divisors (see below), whose sum is σ = 107626743360. Its totient is φ = 53771645576.

The previous prime is 80688762929. The next prime is 80688762941. The reversal of 80688762939 is 93926788608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80688762939 - 2¹³ = 80688754747 is a prime.

It is a super-2 number, since 2×80688762939² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80688762939.

It is not an unprimeable number, because it can be changed into a prime (80688762929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5206737 + ... + 5222210.

It is an arithmetic number, because the mean of its divisors is an integer number (13453342920).

Almost surely, 2^80688762939 is an apocalyptic number.

80688762939 is a deficient number, since it is larger than the sum of its proper divisors (26937980421).

80688762939 is a wasteful number, since it uses less digits than its factorization.

80688762939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10431529.

The product of its (nonzero) digits is 62705664, while the sum is 66.

The spelling of 80688762939 in words is "eighty billion, six hundred eighty-eight million, seven hundred sixty-two thousand, nine hundred thirty-nine".