49481992279 has 2 divisors, whose sum is σ = 49481992280. Its totient is φ = 49481992278.

The previous prime is 49481992267. The next prime is 49481992289. The reversal of 49481992279 is 97229918494.

It is a happy number.

49481992279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49481992279 - 2²⁷ = 49347774551 is a prime.

It is a super-2 number, since 2×49481992279² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49481992279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49481992229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24740996139 + 24740996140.

It is an arithmetic number, because the mean of its divisors is an integer number (24740996140).

Almost surely, 2^49481992279 is an apocalyptic number.

49481992279 is a deficient number, since it is larger than the sum of its proper divisors (1).

49481992279 is an equidigital number, since it uses as much as digits as its factorization.

49481992279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 64.

The spelling of 49481992279 in words is "forty-nine billion, four hundred eighty-one million, nine hundred ninety-two thousand, two hundred seventy-nine".