74185244139601 has 8 divisors (see below), whose sum is σ = 84836694691584. Its totient is φ = 63547183220640.

The previous prime is 74185244139593. The next prime is 74185244139647. The reversal of 74185244139601 is 10693144258147.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74185244139601 - 2³ = 74185244139593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74185244139661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3347396380 + ... + 3347418541.

It is an arithmetic number, because the mean of its divisors is an integer number (10604586836448).

It is a 1-persistent number, because it is pandigital, but 2⋅74185244139601 = 148370488279202 is not.

Almost surely, 2^{74185244139601} is an apocalyptic number.

It is an amenable number.

74185244139601 is a deficient number, since it is larger than the sum of its proper divisors (10651450551983).

74185244139601 is a wasteful number, since it uses less digits than its factorization.

74185244139601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694816511.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 74185244139601 in words is "seventy-four trillion, one hundred eighty-five billion, two hundred forty-four million, one hundred thirty-nine thousand, six hundred one".