745740232623 has 6 divisors (see below), whose sum is σ = 1077180336024. Its totient is φ = 497160155076.

The previous prime is 745740232607. The next prime is 745740232649. The reversal of 745740232623 is 326232047547.

745740232623 is a `hidden beast` number, since 74 + 574 + 0 + 2 + 3 + 2 + 6 + 2 + 3 = 666.

It is not a de Polignac number, because 745740232623 - 2⁴ = 745740232607 is a prime.

It is a super-2 number, since 2×745740232623² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745740232663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41430012915 + ... + 41430012932.

It is an arithmetic number, because the mean of its divisors is an integer number (179530056004).

Almost surely, 2^745740232623 is an apocalyptic number.

745740232623 is a deficient number, since it is larger than the sum of its proper divisors (331440103401).

745740232623 is a wasteful number, since it uses less digits than its factorization.

745740232623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82860025853 (or 82860025850 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 45.

The spelling of 745740232623 in words is "seven hundred forty-five billion, seven hundred forty million, two hundred thirty-two thousand, six hundred twenty-three".