74168780231 has 16 divisors (see below), whose sum is σ = 92092494144. Its totient is φ = 58163664384.

The previous prime is 74168780219. The next prime is 74168780237. The reversal of 74168780231 is 13208786147.

It is a happy number.

It is not a de Polignac number, because 74168780231 - 2¹⁰ = 74168779207 is a prime.

It is a super-2 number, since 2×74168780231² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74168780237) 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, 3596096 + ... + 3616661.

It is an arithmetic number, because the mean of its divisors is an integer number (5755780884).

Almost surely, 2^74168780231 is an apocalyptic number.

74168780231 is a deficient number, since it is larger than the sum of its proper divisors (17923713913).

74168780231 is a wasteful number, since it uses less digits than its factorization.

74168780231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212890.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 74168780231 in words is "seventy-four billion, one hundred sixty-eight million, seven hundred eighty thousand, two hundred thirty-one".