74539893547 has 8 divisors (see below), whose sum is σ = 85214679552. Its totient is φ = 63871665000.

The previous prime is 74539893541. The next prime is 74539893569.

74539893547 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 74539893547 - 2¹⁵ = 74539860779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74539893541) 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, 1614979 + ... + 1660492.

It is an arithmetic number, because the mean of its divisors is an integer number (10651834944).

Almost surely, 2^74539893547 is an apocalyptic number.

74539893547 is a deficient number, since it is larger than the sum of its proper divisors (10674786005).

74539893547 is a wasteful number, since it uses less digits than its factorization.

74539893547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278729.

The product of its digits is 114307200, while the sum is 64.

The spelling of 74539893547 in words is "seventy-four billion, five hundred thirty-nine million, eight hundred ninety-three thousand, five hundred forty-seven".