74121225147 has 32 divisors (see below), whose sum is σ = 116981356800. Its totient is φ = 46249361856.

The previous prime is 74121225133. The next prime is 74121225151. The reversal of 74121225147 is 74152212147.

74121225147 is a `hidden beast` number, since 7 + 4 + 12 + 122 + 514 + 7 = 666.

It is not a de Polignac number, because 74121225147 - 2⁴ = 74121225131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74121225127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 827818 + ... + 912975.

It is an arithmetic number, because the mean of its divisors is an integer number (3655667400).

Almost surely, 2^74121225147 is an apocalyptic number.

74121225147 is a deficient number, since it is larger than the sum of its proper divisors (42860131653).

74121225147 is a wasteful number, since it uses less digits than its factorization.

74121225147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740904 (or 1740898 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The spelling of 74121225147 in words is "seventy-four billion, one hundred twenty-one million, two hundred twenty-five thousand, one hundred forty-seven".