79134753481 has 15 divisors (see below), whose sum is σ = 92334469223. Its totient is φ = 67817973720.

The previous prime is 79134753479. The next prime is 79134753491. The reversal of 79134753481 is 18435743197.

It is a happy number.

The square root of 79134753481 is 281309.

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., 39557629881 + 39577123600 = 198891^2 + 198940^2 .

It is not a de Polignac number, because 79134753481 - 2¹ = 79134753479 is a prime.

It is a super-2 number, since 2×79134753481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79134753421) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 13781271 + ... + 13787011.

Almost surely, 2^79134753481 is an apocalyptic number.

79134753481 is the 281309-th square number.

79134753481 is the 140655-th centered octagonal number.

It is an amenable number.

79134753481 is a deficient number, since it is larger than the sum of its proper divisors (13199715742).

79134753481 is an frugal number, since it uses more digits than its factorization.

79134753481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11510 (or 5748 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 52.

The spelling of 79134753481 in words is "seventy-nine billion, one hundred thirty-four million, seven hundred fifty-three thousand, four hundred eighty-one".