74421368073 has 24 divisors (see below), whose sum is σ = 115790892672. Its totient is φ = 45788143968.

The previous prime is 74421368069. The next prime is 74421368159. The reversal of 74421368073 is 37086312447.

74421368073 is a `hidden beast` number, since 7 + 442 + 136 + 8 + 0 + 73 = 666.

It is not a de Polignac number, because 74421368073 - 2² = 74421368069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74421368023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 513990 + ... + 642672.

It is an arithmetic number, because the mean of its divisors is an integer number (4824620528).

Almost surely, 2^74421368073 is an apocalyptic number.

It is an amenable number.

74421368073 is a deficient number, since it is larger than the sum of its proper divisors (41369524599).

74421368073 is a wasteful number, since it uses less digits than its factorization.

74421368073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133645 (or 133642 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 74421368073 in words is "seventy-four billion, four hundred twenty-one million, three hundred sixty-eight thousand, seventy-three".