74921127844 has 24 divisors (see below), whose sum is σ = 131649634368. Its totient is φ = 37307123040.

The previous prime is 74921127833. The next prime is 74921127857. The reversal of 74921127844 is 44872112947.

It is a happy number.

It is a super-2 number, since 2×74921127844² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1749739 + ... + 1792045.

It is an arithmetic number, because the mean of its divisors is an integer number (5485401432).

Almost surely, 2^74921127844 is an apocalyptic number.

It is an amenable number.

74921127844 is a deficient number, since it is larger than the sum of its proper divisors (56728506524).

74921127844 is a wasteful number, since it uses less digits than its factorization.

74921127844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44115 (or 44113 counting only the distinct ones).

The product of its digits is 903168, while the sum is 49.

The spelling of 74921127844 in words is "seventy-four billion, nine hundred twenty-one million, one hundred twenty-seven thousand, eight hundred forty-four".