74213631247 has 24 divisors (see below), whose sum is σ = 88499017152. Its totient is φ = 62015788800.

The previous prime is 74213631241. The next prime is 74213631269.

74213631247 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74213631247 - 2⁷ = 74213631119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74213631241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2962858 + ... + 2987800.

It is an arithmetic number, because the mean of its divisors is an integer number (3687459048).

Almost surely, 2^74213631247 is an apocalyptic number.

74213631247 is a deficient number, since it is larger than the sum of its proper divisors (14285385905).

74213631247 is a wasteful number, since it uses less digits than its factorization.

74213631247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26479 (or 26472 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The spelling of 74213631247 in words is "seventy-four billion, two hundred thirteen million, six hundred thirty-one thousand, two hundred forty-seven".