74899843865 has 16 divisors (see below), whose sum is σ = 112057948800. Its totient is φ = 46690811520.

The previous prime is 74899843813. The next prime is 74899843867. The reversal of 74899843865 is 56834899847.

It is not a de Polignac number, because 74899843865 - 2¹² = 74899839769 is a prime.

It is a super-2 number, since 2×74899843865² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74899843867) 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, 97272140 + ... + 97272909.

It is an arithmetic number, because the mean of its divisors is an integer number (7003621800).

Almost surely, 2^74899843865 is an apocalyptic number.

It is an amenable number.

74899843865 is a deficient number, since it is larger than the sum of its proper divisors (37158104935).

74899843865 is a wasteful number, since it uses less digits than its factorization.

74899843865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194545072.

The product of its digits is 418037760, while the sum is 71.

The spelling of 74899843865 in words is "seventy-four billion, eight hundred ninety-nine million, eight hundred forty-three thousand, eight hundred sixty-five".