74206705511 has 2 divisors, whose sum is σ = 74206705512. Its totient is φ = 74206705510.

The previous prime is 74206705487. The next prime is 74206705513. The reversal of 74206705511 is 11550760247.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74206705511 - 2¹⁰ = 74206704487 is a prime.

It is a super-2 number, since 2×74206705511² (a number of 23 digits) contains 22 as substring.

Together with 74206705513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74206705513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37103352755 + 37103352756.

It is an arithmetic number, because the mean of its divisors is an integer number (37103352756).

Almost surely, 2^74206705511 is an apocalyptic number.

74206705511 is a deficient number, since it is larger than the sum of its proper divisors (1).

74206705511 is an equidigital number, since it uses as much as digits as its factorization.

74206705511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 74206705511 in words is "seventy-four billion, two hundred six million, seven hundred five thousand, five hundred eleven".