22151427439 has 2 divisors, whose sum is σ = 22151427440. Its totient is φ = 22151427438.

The previous prime is 22151427421. The next prime is 22151427523. The reversal of 22151427439 is 93472415122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22151427439 - 2²⁵ = 22117873007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22151727439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11075713719 + 11075713720.

It is an arithmetic number, because the mean of its divisors is an integer number (11075713720).

Almost surely, 2^22151427439 is an apocalyptic number.

22151427439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22151427439 is an equidigital number, since it uses as much as digits as its factorization.

22151427439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The spelling of 22151427439 in words is "twenty-two billion, one hundred fifty-one million, four hundred twenty-seven thousand, four hundred thirty-nine".