21423157227325 has 48 divisors (see below), whose sum is σ = 31076265463936. Its totient is φ = 14343659366400.

The previous prime is 21423157227247. The next prime is 21423157227331. The reversal of 21423157227325 is 52372275132412.

It is a de Polignac number, because none of the positive numbers 2^k-21423157227325 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21739285 + ... + 22703365.

Almost surely, 2^{21423157227325} is an apocalyptic number.

21423157227325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21423157227325 is a deficient number, since it is larger than the sum of its proper divisors (9653108236611).

21423157227325 is a wasteful number, since it uses less digits than its factorization.

21423157227325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967094 (or 967089 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 46.

The spelling of 21423157227325 in words is "twenty-one trillion, four hundred twenty-three billion, one hundred fifty-seven million, two hundred twenty-seven thousand, three hundred twenty-five".