74743985623 has 2 divisors, whose sum is σ = 74743985624. Its totient is φ = 74743985622.

The previous prime is 74743985597. The next prime is 74743985627. The reversal of 74743985623 is 32658934747.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74743985623 - 2²⁹ = 74207114711 is a prime.

It is a super-2 number, since 2×74743985623² (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 (74743985627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37371992811 + 37371992812.

It is an arithmetic number, because the mean of its divisors is an integer number (37371992812).

Almost surely, 2^74743985623 is an apocalyptic number.

74743985623 is a deficient number, since it is larger than the sum of its proper divisors (1).

74743985623 is an equidigital number, since it uses as much as digits as its factorization.

74743985623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 58.

The spelling of 74743985623 in words is "seventy-four billion, seven hundred forty-three million, nine hundred eighty-five thousand, six hundred twenty-three".