49801842639 has 24 divisors (see below), whose sum is σ = 73897460000. Its totient is φ = 32296356288.

The previous prime is 49801842637. The next prime is 49801842653. The reversal of 49801842639 is 93624810894.

It is not a de Polignac number, because 49801842639 - 2¹ = 49801842637 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 (49801842637) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1649709 + ... + 1679625.

Almost surely, 2^49801842639 is an apocalyptic number.

49801842639 is a deficient number, since it is larger than the sum of its proper divisors (24095617361).

49801842639 is a wasteful number, since it uses less digits than its factorization.

49801842639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34959 (or 34956 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 49801842639 in words is "forty-nine billion, eight hundred one million, eight hundred forty-two thousand, six hundred thirty-nine".