49820821307 has 4 divisors (see below), whose sum is σ = 49865990880. Its totient is φ = 49775651736.

The previous prime is 49820821283. The next prime is 49820821313. The reversal of 49820821307 is 70312802894.

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 49820821307 - 2⁶ = 49820821243 is a prime.

It is a super-2 number, since 2×49820821307² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49820821327) 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, 22583132 + ... + 22585337.

It is an arithmetic number, because the mean of its divisors is an integer number (12466497720).

Almost surely, 2^49820821307 is an apocalyptic number.

49820821307 is a deficient number, since it is larger than the sum of its proper divisors (45169573).

49820821307 is a wasteful number, since it uses less digits than its factorization.

49820821307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45169572.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 49820821307 in words is "forty-nine billion, eight hundred twenty million, eight hundred twenty-one thousand, three hundred seven".