5623121612 has 6 divisors (see below), whose sum is σ = 9840462828. Its totient is φ = 2811560804.

The previous prime is 5623121591. The next prime is 5623121617. The reversal of 5623121612 is 2161213265.

It is not an unprimeable number, because it can be changed into a prime (5623121617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702890198 + ... + 702890205.

It is an arithmetic number, because the mean of its divisors is an integer number (1640077138).

Almost surely, 2^5623121612 is an apocalyptic number.

It is an amenable number.

5623121612 is a deficient number, since it is larger than the sum of its proper divisors (4217341216).

5623121612 is a wasteful number, since it uses less digits than its factorization.

5623121612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405780407 (or 1405780405 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 5623121612 is about 74987.4763677242. The cubic root of 5623121612 is about 1778.2486679624.

Adding to 5623121612 its reverse (2161213265), we get a palindrome (7784334877).

The spelling of 5623121612 in words is "five billion, six hundred twenty-three million, one hundred twenty-one thousand, six hundred twelve".