74851868231 has 4 divisors (see below), whose sum is σ = 85544992272. Its totient is φ = 64158744192.

The previous prime is 74851868167. The next prime is 74851868257. The reversal of 74851868231 is 13286815847.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74851868231 - 2⁶ = 74851868167 is a prime.

It is a super-2 number, since 2×74851868231² (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 (74851868281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5346562010 + ... + 5346562023.

It is an arithmetic number, because the mean of its divisors is an integer number (21386248068).

Almost surely, 2^74851868231 is an apocalyptic number.

74851868231 is a deficient number, since it is larger than the sum of its proper divisors (10693124041).

74851868231 is a wasteful number, since it uses less digits than its factorization.

74851868231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10693124040.

The product of its digits is 2580480, while the sum is 53.

The spelling of 74851868231 in words is "seventy-four billion, eight hundred fifty-one million, eight hundred sixty-eight thousand, two hundred thirty-one".