74205123493 has 16 divisors (see below), whose sum is σ = 76074782400. Its totient is φ = 72360604800.

The previous prime is 74205123401. The next prime is 74205123529. The reversal of 74205123493 is 39432150247.

It is a cyclic number.

It is not a de Polignac number, because 74205123493 - 2²⁵ = 74171569061 is a prime.

It is a super-2 number, since 2×74205123493² (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 (74205121493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5441838 + ... + 5455456.

It is an arithmetic number, because the mean of its divisors is an integer number (4754673900).

Almost surely, 2^74205123493 is an apocalyptic number.

74205123493 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

74205123493 is a deficient number, since it is larger than the sum of its proper divisors (1869658907).

74205123493 is a wasteful number, since it uses less digits than its factorization.

74205123493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14532.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 74205123493 in words is "seventy-four billion, two hundred five million, one hundred twenty-three thousand, four hundred ninety-three".