74894649847 has 8 divisors (see below), whose sum is σ = 75245184000. Its totient is φ = 74544574464.

The previous prime is 74894649827. The next prime is 74894649859.

74894649847 is nontrivially palindromic in base 10.

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 74894649847 - 2¹⁵ = 74894617079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74894649827) 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, 214779 + ... + 442627.

It is an arithmetic number, because the mean of its divisors is an integer number (9405648000).

Almost surely, 2^74894649847 is an apocalyptic number.

74894649847 is a deficient number, since it is larger than the sum of its proper divisors (350534153).

74894649847 is a wasteful number, since it uses less digits than its factorization.

74894649847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229385.

The product of its digits is 390168576, while the sum is 70.

The spelling of 74894649847 in words is "seventy-four billion, eight hundred ninety-four million, six hundred forty-nine thousand, eight hundred forty-seven".