74857044491 has 8 divisors (see below), whose sum is σ = 75088189680. Its totient is φ = 74625988608.

The previous prime is 74857044413. The next prime is 74857044497. The reversal of 74857044491 is 19444075847.

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

It is a cyclic number.

It is not a de Polignac number, because 74857044491 - 2³⁴ = 57677175307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74857044497) 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, 1913075 + ... + 1951811.

It is an arithmetic number, because the mean of its divisors is an integer number (9386023710).

Almost surely, 2^74857044491 is an apocalyptic number.

74857044491 is a deficient number, since it is larger than the sum of its proper divisors (231145189).

74857044491 is a wasteful number, since it uses less digits than its factorization.

74857044491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44653.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 74857044491 in words is "seventy-four billion, eight hundred fifty-seven million, forty-four thousand, four hundred ninety-one".