74394370089 has 24 divisors (see below), whose sum is σ = 122531906952. Its totient is φ = 43088140800.

The previous prime is 74394369971. The next prime is 74394370129. The reversal of 74394370089 is 98007349347.

It can be written as a sum of positive squares in 4 ways, for example, as 3712830489 + 70681539600 = 60933^2 + 265860^2 .

It is not a de Polignac number, because 74394370089 - 2¹³ = 74394361897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74394372089) 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, 18699462 + ... + 18703439.

It is an arithmetic number, because the mean of its divisors is an integer number (5105496123).

Almost surely, 2^74394370089 is an apocalyptic number.

It is an amenable number.

74394370089 is a deficient number, since it is larger than the sum of its proper divisors (48137536863).

74394370089 is a wasteful number, since it uses less digits than its factorization.

74394370089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37402937 (or 37402934 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 74394370089 in words is "seventy-four billion, three hundred ninety-four million, three hundred seventy thousand, eighty-nine".