15734440969 has 9 divisors (see below), whose sum is σ = 17039651733. Its totient is φ = 14522594112.

The previous prime is 15734440937. The next prime is 15734440979. The reversal of 15734440969 is 96904443751.

The square root of 15734440969 is 125437.

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

It can be written as a sum of positive squares in 4 ways, for example, as 8776879225 + 6957561744 = 93685^2 + 83412^2 .

It is not a de Polignac number, because 15734440969 - 2⁵ = 15734440937 is a prime.

It is a super-2 number, since 2×15734440969² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15734440979) 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, 1625857 + ... + 1635505.

It is an arithmetic number, because the mean of its divisors is an integer number (1893294637).

Almost surely, 2^15734440969 is an apocalyptic number.

15734440969 is the 125437-th square number.

15734440969 is the 62719-th centered octagonal number.

It is an amenable number.

15734440969 is a deficient number, since it is larger than the sum of its proper divisors (1305210764).

15734440969 is an frugal number, since it uses more digits than its factorization.

15734440969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19324 (or 9662 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 15734440969 in words is "fifteen billion, seven hundred thirty-four million, four hundred forty thousand, nine hundred sixty-nine".