80399851742 has 32 divisors (see below), whose sum is σ = 144845386752. Its totient is φ = 32746127904.

The previous prime is 80399851739. The next prime is 80399851751. The reversal of 80399851742 is 24715899308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1782518 + ... + 1827065.

It is an arithmetic number, because the mean of its divisors is an integer number (4526418336).

Almost surely, 2^80399851742 is an apocalyptic number.

80399851742 is a deficient number, since it is larger than the sum of its proper divisors (64445535010).

80399851742 is a wasteful number, since it uses less digits than its factorization.

80399851742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609672.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 80399851742 in words is "eighty billion, three hundred ninety-nine million, eight hundred fifty-one thousand, seven hundred forty-two".