74454845446 has 4 divisors (see below), whose sum is σ = 111682268172. Its totient is φ = 37227422722.

The previous prime is 74454845441. The next prime is 74454845467. The reversal of 74454845446 is 64454845447.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74454845441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18613711360 + ... + 18613711363.

It is an arithmetic number, because the mean of its divisors is an integer number (27920567043).

Almost surely, 2^74454845446 is an apocalyptic number.

74454845446 is a deficient number, since it is larger than the sum of its proper divisors (37227422726).

74454845446 is a wasteful number, since it uses less digits than its factorization.

74454845446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37227422725.

The product of its digits is 34406400, while the sum is 55.

Subtracting from 74454845446 its reverse (64454845447), we obtain a palindrome (9999999999).

The spelling of 74454845446 in words is "seventy-four billion, four hundred fifty-four million, eight hundred forty-five thousand, four hundred forty-six".