74142433827 has 36 divisors (see below), whose sum is σ = 134532106800. Its totient is φ = 38515546080.

The previous prime is 74142433819. The next prime is 74142433837. The reversal of 74142433827 is 72833424147.

74142433827 is a `hidden beast` number, since 74 + 142 + 433 + 8 + 2 + 7 = 666.

It is not a de Polignac number, because 74142433827 - 2³ = 74142433819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74142433837) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4855452 + ... + 4870697.

Almost surely, 2^74142433827 is an apocalyptic number.

74142433827 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

74142433827 is a deficient number, since it is larger than the sum of its proper divisors (60389672973).

74142433827 is a wasteful number, since it uses less digits than its factorization.

74142433827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726184 (or 9726170 counting only the distinct ones).

The product of its digits is 903168, while the sum is 45.

The spelling of 74142433827 in words is "seventy-four billion, one hundred forty-two million, four hundred thirty-three thousand, eight hundred twenty-seven".