49821756407 has 2 divisors, whose sum is σ = 49821756408. Its totient is φ = 49821756406.

The previous prime is 49821756389. The next prime is 49821756421. The reversal of 49821756407 is 70465712894.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49821756407 - 2¹⁸ = 49821494263 is a prime.

It is a super-2 number, since 2×49821756407² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49821726407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24910878203 + 24910878204.

It is an arithmetic number, because the mean of its divisors is an integer number (24910878204).

Almost surely, 2^49821756407 is an apocalyptic number.

49821756407 is a deficient number, since it is larger than the sum of its proper divisors (1).

49821756407 is an equidigital number, since it uses as much as digits as its factorization.

49821756407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 49821756407 in words is "forty-nine billion, eight hundred twenty-one million, seven hundred fifty-six thousand, four hundred seven".