74831507347 has 4 divisors (see below), whose sum is σ = 76099838040. Its totient is φ = 73563176656.

The previous prime is 74831507339. The next prime is 74831507381. The reversal of 74831507347 is 74370513847.

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

It is a cyclic number.

It is not a de Polignac number, because 74831507347 - 2³ = 74831507339 is a prime.

It is a super-2 number, since 2×74831507347² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74831507347.

It is not an unprimeable number, because it can be changed into a prime (74831501347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634165258 + ... + 634165375.

It is an arithmetic number, because the mean of its divisors is an integer number (19024959510).

Almost surely, 2^74831507347 is an apocalyptic number.

74831507347 is a deficient number, since it is larger than the sum of its proper divisors (1268330693).

74831507347 is a wasteful number, since it uses less digits than its factorization.

74831507347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268330692.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 74831507347 in words is "seventy-four billion, eight hundred thirty-one million, five hundred seven thousand, three hundred forty-seven".