93139474405 has 4 divisors (see below), whose sum is σ = 111767369292. Its totient is φ = 74511579520.

The previous prime is 93139474397. The next prime is 93139474423. The reversal of 93139474405 is 50447493139.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27142892001 + 65996582404 = 164751^2 + 256898^2 .

It is not a de Polignac number, because 93139474405 - 2³ = 93139474397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9313947436 + ... + 9313947445.

It is an arithmetic number, because the mean of its divisors is an integer number (27941842323).

Almost surely, 2^93139474405 is an apocalyptic number.

It is an amenable number.

93139474405 is a deficient number, since it is larger than the sum of its proper divisors (18627894887).

93139474405 is a wasteful number, since it uses less digits than its factorization.

93139474405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18627894886.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 93139474405 in words is "ninety-three billion, one hundred thirty-nine million, four hundred seventy-four thousand, four hundred five".