5621023881 has 48 divisors (see below), whose sum is σ = 9157005312. Its totient is φ = 3291775200.

The previous prime is 5621023853. The next prime is 5621023901. The reversal of 5621023881 is 1883201265.

It is a happy number.

5621023881 is a `hidden beast` number, since 5 + 621 + 0 + 23 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 5621023881 - 2¹⁵ = 5620991113 is a prime.

It is a super-2 number, since 2×5621023881² = 63191818941544604322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5621023481) 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, 3261486 + ... + 3263208.

It is an arithmetic number, because the mean of its divisors is an integer number (190770944).

Almost surely, 2^5621023881 is an apocalyptic number.

It is an amenable number.

5621023881 is a deficient number, since it is larger than the sum of its proper divisors (3535981431).

5621023881 is a wasteful number, since it uses less digits than its factorization.

5621023881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 5621023881 is about 74973.4878540408. The cubic root of 5621023881 is about 1778.0275125511.

The spelling of 5621023881 in words is "five billion, six hundred twenty-one million, twenty-three thousand, eight hundred eighty-one".