14437704649 has 3 divisors (see below), whose sum is σ = 14437824807. Its totient is φ = 14437584492.

The previous prime is 14437704599. The next prime is 14437704653. The reversal of 14437704649 is 94640773441.

The square root of 14437704649 is 120157.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 14226525625 + 211179024 = 119275^2 + 14532^2 .

It is not a de Polignac number, because 14437704649 - 2²¹ = 14435607497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14437704349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 60079 + ... + 180235.

It is an arithmetic number, because the mean of its divisors is an integer number (4812608269).

Almost surely, 2^14437704649 is an apocalyptic number.

14437704649 is the 120157-th square number.

14437704649 is the 60079-th centered octagonal number.

It is an amenable number.

14437704649 is a deficient number, since it is larger than the sum of its proper divisors (120158).

14437704649 is an frugal number, since it uses more digits than its factorization.

14437704649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240314 (or 120157 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 49.

Multiplying 14437704649 by its sum of digits (49), we get a square (707447527801 = 841099²).

The spelling of 14437704649 in words is "fourteen billion, four hundred thirty-seven million, seven hundred four thousand, six hundred forty-nine".