74501687091 has 8 divisors (see below), whose sum is σ = 106976781520. Its totient is φ = 45847192032.

The previous prime is 74501687089. The next prime is 74501687119. The reversal of 74501687091 is 19078610547.

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

It is not a de Polignac number, because 74501687091 - 2¹ = 74501687089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74501687091.

It is not an unprimeable number, because it can be changed into a prime (74501687041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 955149796 + ... + 955149873.

It is an arithmetic number, because the mean of its divisors is an integer number (13372097690).

Almost surely, 2^74501687091 is an apocalyptic number.

74501687091 is a deficient number, since it is larger than the sum of its proper divisors (32475094429).

74501687091 is a wasteful number, since it uses less digits than its factorization.

74501687091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910299685.

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 74501687091 in words is "seventy-four billion, five hundred one million, six hundred eighty-seven thousand, ninety-one".