74953977447 has 8 divisors (see below), whose sum is σ = 100440841600. Its totient is φ = 49718215800.

The previous prime is 74953977443. The next prime is 74953977463. The reversal of 74953977447 is 74477935947.

It is a happy number.

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

It is not a de Polignac number, because 74953977447 - 2² = 74953977443 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 (74953977443) 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, 62774929 + ... + 62776122.

It is an arithmetic number, because the mean of its divisors is an integer number (12555105200).

Almost surely, 2^74953977447 is an apocalyptic number.

74953977447 is a deficient number, since it is larger than the sum of its proper divisors (25486864153).

74953977447 is a wasteful number, since it uses less digits than its factorization.

74953977447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125551253.

The product of its digits is 186701760, while the sum is 66.

The spelling of 74953977447 in words is "seventy-four billion, nine hundred fifty-three million, nine hundred seventy-seven thousand, four hundred forty-seven".