49650972823 has 4 divisors (see below), whose sum is σ = 49653840960. Its totient is φ = 49648104688.

The previous prime is 49650972799. The next prime is 49650972883. The reversal of 49650972823 is 32827905694.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32827905694 = 2 ⋅16413952847.

It is a cyclic number.

It is not a de Polignac number, because 49650972823 - 2²¹ = 49648875671 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 (49650972883) 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, 1407943 + ... + 1442776.

It is an arithmetic number, because the mean of its divisors is an integer number (12413460240).

Almost surely, 2^49650972823 is an apocalyptic number.

49650972823 is a deficient number, since it is larger than the sum of its proper divisors (2868137).

49650972823 is a wasteful number, since it uses less digits than its factorization.

49650972823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868136.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 49650972823 in words is "forty-nine billion, six hundred fifty million, nine hundred seventy-two thousand, eight hundred twenty-three".