74356980517 has 2 divisors, whose sum is σ = 74356980518. Its totient is φ = 74356980516.

The previous prime is 74356980433. The next prime is 74356980547. The reversal of 74356980517 is 71508965347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70815064321 + 3541916196 = 266111^2 + 59514^2 .

It is an emirp because it is prime and its reverse (71508965347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74356980517 - 2⁷ = 74356980389 is a prime.

It is a super-3 number, since 3×74356980517³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74356980547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37178490258 + 37178490259.

It is an arithmetic number, because the mean of its divisors is an integer number (37178490259).

Almost surely, 2^74356980517 is an apocalyptic number.

It is an amenable number.

74356980517 is a deficient number, since it is larger than the sum of its proper divisors (1).

74356980517 is an equidigital number, since it uses as much as digits as its factorization.

74356980517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 74356980517 in words is "seventy-four billion, three hundred fifty-six million, nine hundred eighty thousand, five hundred seventeen".