14541977649 has 4 divisors (see below), whose sum is σ = 19389303536. Its totient is φ = 9694651764.

The previous prime is 14541977627. The next prime is 14541977657. The reversal of 14541977649 is 94677914541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 14541977649 - 2⁹ = 14541977137 is a prime.

It is a super-2 number, since 2×14541977649² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14541977609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2423662939 + ... + 2423662944.

It is an arithmetic number, because the mean of its divisors is an integer number (4847325884).

Almost surely, 2^14541977649 is an apocalyptic number.

It is an amenable number.

14541977649 is a deficient number, since it is larger than the sum of its proper divisors (4847325887).

14541977649 is an equidigital number, since it uses as much as digits as its factorization.

14541977649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4847325886.

The product of its digits is 7620480, while the sum is 57.

The spelling of 14541977649 in words is "fourteen billion, five hundred forty-one million, nine hundred seventy-seven thousand, six hundred forty-nine".