8463448023921 has 40 divisors (see below), whose sum is σ = 13900886529024. Its totient is φ = 5088973690080.

The previous prime is 8463448023911. The next prime is 8463448023991. The reversal of 8463448023921 is 1293208443648.

It is a happy number.

8463448023921 is a `hidden beast` number, since 8 + 46 + 34 + 480 + 2 + 3 + 92 + 1 = 666.

It is not a de Polignac number, because 8463448023921 - 2⁵ = 8463448023889 is a prime.

It is a super-2 number, since 2×8463448023921² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8463448023911) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 37283770 + ... + 37510083.

Almost surely, 2^{8463448023921} is an apocalyptic number.

8463448023921 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8463448023921 is a deficient number, since it is larger than the sum of its proper divisors (5437438505103).

8463448023921 is a wasteful number, since it uses less digits than its factorization.

8463448023921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74794003 (or 74793994 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

It can be divided in two parts, 84634480 and 23921, that added together give a square (84658401 = 9201²).

The spelling of 8463448023921 in words is "eight trillion, four hundred sixty-three billion, four hundred forty-eight million, twenty-three thousand, nine hundred twenty-one".