49909804259279 has 2 divisors, whose sum is σ = 49909804259280. Its totient is φ = 49909804259278.

The previous prime is 49909804259239. The next prime is 49909804259333. The reversal of 49909804259279 is 97295240890994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49909804259279 - 2³² = 49905509291983 is a prime.

It is a super-2 number, since 2×49909804259279² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49909804259219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24954902129639 + 24954902129640.

It is an arithmetic number, because the mean of its divisors is an integer number (24954902129640).

Almost surely, 2^{49909804259279} is an apocalyptic number.

49909804259279 is a deficient number, since it is larger than the sum of its proper divisors (1).

49909804259279 is an equidigital number, since it uses as much as digits as its factorization.

49909804259279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058158080, while the sum is 77.

The spelling of 49909804259279 in words is "forty-nine trillion, nine hundred nine billion, eight hundred four million, two hundred fifty-nine thousand, two hundred seventy-nine".