74918511423 has 24 divisors (see below), whose sum is σ = 123688572800. Its totient is φ = 42805880784.

The previous prime is 74918511401. The next prime is 74918511439. The reversal of 74918511423 is 32411581947.

74918511423 is a `hidden beast` number, since 7 + 4 + 91 + 8 + 511 + 42 + 3 = 666.

It is not a de Polignac number, because 74918511423 - 2⁵ = 74918511391 is a prime.

It is a super-2 number, since 2×74918511423² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74918511443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 560808 + ... + 681426.

Almost surely, 2^74918511423 is an apocalyptic number.

74918511423 is a deficient number, since it is larger than the sum of its proper divisors (48770061377).

74918511423 is a wasteful number, since it uses less digits than its factorization.

74918511423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130491 (or 130488 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 74918511423 in words is "seventy-four billion, nine hundred eighteen million, five hundred eleven thousand, four hundred twenty-three".