74268013517 has 2 divisors, whose sum is σ = 74268013518. Its totient is φ = 74268013516.

The previous prime is 74268013493. The next prime is 74268013529. The reversal of 74268013517 is 71531086247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73348347241 + 919666276 = 270829^2 + 30326^2 .

It is a cyclic number.

It is not a de Polignac number, because 74268013517 - 2¹⁰ = 74268012493 is a prime.

It is a super-2 number, since 2×74268013517² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74268013717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37134006758 + 37134006759.

It is an arithmetic number, because the mean of its divisors is an integer number (37134006759).

Almost surely, 2^74268013517 is an apocalyptic number.

It is an amenable number.

74268013517 is a deficient number, since it is larger than the sum of its proper divisors (1).

74268013517 is an equidigital number, since it uses as much as digits as its factorization.

74268013517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 74268013517 in words is "seventy-four billion, two hundred sixty-eight million, thirteen thousand, five hundred seventeen".