49451038372279 has 2 divisors, whose sum is σ = 49451038372280. Its totient is φ = 49451038372278.

The previous prime is 49451038372277. The next prime is 49451038372291. The reversal of 49451038372279 is 97227383015494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49451038372279 - 2¹ = 49451038372277 is a prime.

It is a super-2 number, since 2×49451038372279² (a number of 28 digits) contains 22 as substring.

Together with 49451038372277, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 49451038372279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49451038372277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24725519186139 + 24725519186140.

It is an arithmetic number, because the mean of its divisors is an integer number (24725519186140).

Almost surely, 2^{49451038372279} is an apocalyptic number.

49451038372279 is a deficient number, since it is larger than the sum of its proper divisors (1).

49451038372279 is an equidigital number, since it uses as much as digits as its factorization.

49451038372279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 49451038372279 in words is "forty-nine trillion, four hundred fifty-one billion, thirty-eight million, three hundred seventy-two thousand, two hundred seventy-nine".