80409549400 has 48 divisors (see below), whose sum is σ = 187018878240. Its totient is φ = 32152348800.

The previous prime is 80409549391. The next prime is 80409549401. The reversal of 80409549400 is 494590408.

It is a super-2 number, since 2×80409549400² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80409549401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501937 + ... + 642463.

It is an arithmetic number, because the mean of its divisors is an integer number (3896226630).

Almost surely, 2^80409549400 is an apocalyptic number.

It is an amenable number.

80409549400 is an abundant number, since it is smaller than the sum of its proper divisors (106609328840).

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

80409549400 is a wasteful number, since it uses less digits than its factorization.

80409549400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143404 (or 143395 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 80409549400 in words is "eighty billion, four hundred nine million, five hundred forty-nine thousand, four hundred".