49986002643 has 4 divisors (see below), whose sum is σ = 66648003528. Its totient is φ = 33324001760.

The previous prime is 49986002623. The next prime is 49986002653. The reversal of 49986002643 is 34620068994.

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 49986002643 - 2⁸ = 49986002387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49986002623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8331000438 + ... + 8331000443.

It is an arithmetic number, because the mean of its divisors is an integer number (16662000882).

Almost surely, 2^49986002643 is an apocalyptic number.

49986002643 is a deficient number, since it is larger than the sum of its proper divisors (16662000885).

49986002643 is a wasteful number, since it uses less digits than its factorization.

49986002643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16662000884.

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 49986002643 in words is "forty-nine billion, nine hundred eighty-six million, two thousand, six hundred forty-three".