14512621549 has 2 divisors, whose sum is σ = 14512621550. Its totient is φ = 14512621548.

The previous prime is 14512621547. The next prime is 14512621579. The reversal of 14512621549 is 94512621541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13740059524 + 772562025 = 117218^2 + 27795^2 .

It is a cyclic number.

It is not a de Polignac number, because 14512621549 - 2¹ = 14512621547 is a prime.

Together with 14512621547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14512621547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7256310774 + 7256310775.

It is an arithmetic number, because the mean of its divisors is an integer number (7256310775).

Almost surely, 2^14512621549 is an apocalyptic number.

It is an amenable number.

14512621549 is a deficient number, since it is larger than the sum of its proper divisors (1).

14512621549 is an equidigital number, since it uses as much as digits as its factorization.

14512621549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The spelling of 14512621549 in words is "fourteen billion, five hundred twelve million, six hundred twenty-one thousand, five hundred forty-nine".