15414960649 has 9 divisors (see below), whose sum is σ = 16945218381. Its totient is φ = 14012359020.

The previous prime is 15414960641. The next prime is 15414960667. The reversal of 15414960649 is 94606941451.

The square root of 15414960649 is 124157.

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

It is not a de Polignac number, because 15414960649 - 2³ = 15414960641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15414960641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1360084 + ... + 1371370.

Almost surely, 2^15414960649 is an apocalyptic number.

15414960649 is the 124157-th square number.

15414960649 is the 62079-th centered octagonal number.

It is an amenable number.

15414960649 is a deficient number, since it is larger than the sum of its proper divisors (1530257732).

15414960649 is an frugal number, since it uses more digits than its factorization.

15414960649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22596 (or 11298 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

Multiplying 15414960649 by its sum of digits (49), we get a square (755333071801 = 869099²).

The spelling of 15414960649 in words is "fifteen billion, four hundred fourteen million, nine hundred sixty thousand, six hundred forty-nine".