8400880844489 has 32 divisors (see below), whose sum is σ = 9731910240000. Its totient is φ = 7102976753664.

The previous prime is 8400880844479. The next prime is 8400880844533. The reversal of 8400880844489 is 9844480880048.

It is a cyclic number.

It is not a de Polignac number, because 8400880844489 - 2⁸ = 8400880844233 is a prime.

It is a super-2 number, since 2×8400880844489² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8400880844479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 683603657 + ... + 683615945.

It is an arithmetic number, because the mean of its divisors is an integer number (304122195000).

Almost surely, 2^{8400880844489} is an apocalyptic number.

8400880844489 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

8400880844489 is a deficient number, since it is larger than the sum of its proper divisors (1331029395511).

8400880844489 is a wasteful number, since it uses less digits than its factorization.

8400880844489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14897.

The product of its (nonzero) digits is 75497472, while the sum is 65.

The spelling of 8400880844489 in words is "eight trillion, four hundred billion, eight hundred eighty million, eight hundred forty-four thousand, four hundred eighty-nine".