5172537969 has 12 divisors (see below), whose sum is σ = 7474158900. Its totient is φ = 3447105504.

The previous prime is 5172537967. The next prime is 5172537977. The reversal of 5172537969 is 9697352715.

5172537969 is a `hidden beast` number, since 5 + 17 + 2 + 537 + 96 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1771315569 + 3401222400 = 42087^2 + 58320^2 .

It is not a de Polignac number, because 5172537969 - 2¹ = 5172537967 is a prime.

It is a super-2 number, since 2×5172537969² = 53510298081493289922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5172537961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77934 + ... + 128135.

It is an arithmetic number, because the mean of its divisors is an integer number (622846575).

Almost surely, 2^5172537969 is an apocalyptic number.

It is an amenable number.

5172537969 is a deficient number, since it is larger than the sum of its proper divisors (2301620931).

5172537969 is a wasteful number, since it uses less digits than its factorization.

5172537969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208864 (or 208861 counting only the distinct ones).

The product of its digits is 3572100, while the sum is 54.

The square root of 5172537969 is about 71920.3585155135. The cubic root of 5172537969 is about 1729.4229945602.

The spelling of 5172537969 in words is "five billion, one hundred seventy-two million, five hundred thirty-seven thousand, nine hundred sixty-nine".