14525423621 has 2 divisors, whose sum is σ = 14525423622. Its totient is φ = 14525423620.

The previous prime is 14525423599. The next prime is 14525423683. The reversal of 14525423621 is 12632452541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9494358721 + 5031064900 = 97439^2 + 70930^2 .

It is a cyclic number.

It is not a de Polignac number, because 14525423621 - 2⁶ = 14525423557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14525423021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7262711810 + 7262711811.

It is an arithmetic number, because the mean of its divisors is an integer number (7262711811).

Almost surely, 2^14525423621 is an apocalyptic number.

It is an amenable number.

14525423621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14525423621 is an equidigital number, since it uses as much as digits as its factorization.

14525423621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The spelling of 14525423621 in words is "fourteen billion, five hundred twenty-five million, four hundred twenty-three thousand, six hundred twenty-one".