8406621103923 has 48 divisors (see below), whose sum is σ = 14326307786752. Its totient is φ = 4648483080000.

The previous prime is 8406621103891. The next prime is 8406621103927. The reversal of 8406621103923 is 3293011266048.

8406621103923 is a `hidden beast` number, since 8 + 4 + 0 + 6 + 621 + 10 + 3 + 9 + 2 + 3 = 666.

It is not a de Polignac number, because 8406621103923 - 2⁵ = 8406621103891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8406621103927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27857898 + ... + 28158048.

Almost surely, 2^{8406621103923} is an apocalyptic number.

8406621103923 is a deficient number, since it is larger than the sum of its proper divisors (5919686682829).

8406621103923 is a wasteful number, since it uses less digits than its factorization.

8406621103923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314536 (or 314533 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 8406621103923 in words is "eight trillion, four hundred six billion, six hundred twenty-one million, one hundred three thousand, nine hundred twenty-three".