14542671649 has 27 divisors (see below), whose sum is σ = 16899800211. Its totient is φ = 12503082240.

The previous prime is 14542671601. The next prime is 14542671659. The reversal of 14542671649 is 94617624541.

The square root of 14542671649 is 120593.

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

It can be written as a sum of positive squares in only one way, i.e., 14442030625 + 100641024 = 120175^2 + 10032^2 .

It is not a de Polignac number, because 14542671649 - 2²⁹ = 14005800737 is a prime.

It is a super-2 number, since 2×14542671649² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14542671659) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25203649 + ... + 25204225.

Almost surely, 2^14542671649 is an apocalyptic number.

14542671649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

14542671649 is the 120593-rd square number.

14542671649 is the 60297-th centered octagonal number.

It is an amenable number.

14542671649 is a deficient number, since it is larger than the sum of its proper divisors (2357128562).

14542671649 is an frugal number, since it uses more digits than its factorization.

14542671649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 607 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

Multiplying 14542671649 by its sum of digits (49), we get a square (712590910801 = 844151²).

The spelling of 14542671649 in words is "fourteen billion, five hundred forty-two million, six hundred seventy-one thousand, six hundred forty-nine".