80861432938 has 32 divisors (see below), whose sum is σ = 143088466752. Its totient is φ = 33787065600.

The previous prime is 80861432923. The next prime is 80861432959. The reversal of 80861432938 is 83923416808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517656 + ... + 655507.

It is an arithmetic number, because the mean of its divisors is an integer number (4471514586).

Almost surely, 2^80861432938 is an apocalyptic number.

80861432938 is a deficient number, since it is larger than the sum of its proper divisors (62227033814).

80861432938 is a wasteful number, since it uses less digits than its factorization.

80861432938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173430.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 80861432938 in words is "eighty billion, eight hundred sixty-one million, four hundred thirty-two thousand, nine hundred thirty-eight".