79137003969 has 81 divisors (see below), whose sum is σ = 124911901569. Its totient is φ = 50129976600.

The previous prime is 79137003961. The next prime is 79137004031. The reversal of 79137003969 is 96930073197.

The square root of 79137003969 is 281313.

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

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 79137003969 - 2³ = 79137003961 is a prime.

It is a super-2 number, since 2×79137003969² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79137003961) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 524086044 + ... + 524086194.

Almost surely, 2^79137003969 is an apocalyptic number.

79137003969 is the 281313-rd square number.

79137003969 is the 140657-th centered octagonal number.

It is an amenable number.

79137003969 is a deficient number, since it is larger than the sum of its proper divisors (45774897600).

79137003969 is an frugal number, since it uses more digits than its factorization.

79137003969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 1928934, while the sum is 54.

The spelling of 79137003969 in words is "seventy-nine billion, one hundred thirty-seven million, three thousand, nine hundred sixty-nine".