49942113623 has 4 divisors (see below), whose sum is σ = 49945316208. Its totient is φ = 49938911040.

The previous prime is 49942113619. The next prime is 49942113631. The reversal of 49942113623 is 32631124994.

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 49942113623 - 2² = 49942113619 is a prime.

It is a super-2 number, since 2×49942113623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49942113223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577786 + ... + 1609127.

It is an arithmetic number, because the mean of its divisors is an integer number (12486329052).

Almost surely, 2^49942113623 is an apocalyptic number.

49942113623 is a deficient number, since it is larger than the sum of its proper divisors (3202585).

49942113623 is a wasteful number, since it uses less digits than its factorization.

49942113623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202584.

The product of its digits is 279936, while the sum is 44.

The spelling of 49942113623 in words is "forty-nine billion, nine hundred forty-two million, one hundred thirteen thousand, six hundred twenty-three".