80406389372 has 12 divisors (see below), whose sum is σ = 141155067480. Its totient is φ = 40076370096.

The previous prime is 80406389359. The next prime is 80406389377. The reversal of 80406389372 is 27398360408.

It is a self number, because there is not a number n which added to its sum of digits gives 80406389372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80406389377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31704722 + ... + 31707257.

It is an arithmetic number, because the mean of its divisors is an integer number (11762922290).

Almost surely, 2^80406389372 is an apocalyptic number.

It is an amenable number.

80406389372 is a deficient number, since it is larger than the sum of its proper divisors (60748678108).

80406389372 is a wasteful number, since it uses less digits than its factorization.

80406389372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63412300 (or 63412298 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 80406389372 in words is "eighty billion, four hundred six million, three hundred eighty-nine thousand, three hundred seventy-two".