49218651233 has 2 divisors, whose sum is σ = 49218651234. Its totient is φ = 49218651232.

The previous prime is 49218651221. The next prime is 49218651239. The reversal of 49218651233 is 33215681294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35497574464 + 13721076769 = 188408^2 + 117137^2 .

It is a cyclic number.

It is not a de Polignac number, because 49218651233 - 2²⁴ = 49201874017 is a prime.

It is not a weakly prime, because it can be changed into another prime (49218651239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24609325616 + 24609325617.

It is an arithmetic number, because the mean of its divisors is an integer number (24609325617).

Almost surely, 2^49218651233 is an apocalyptic number.

It is an amenable number.

49218651233 is a deficient number, since it is larger than the sum of its proper divisors (1).

49218651233 is an equidigital number, since it uses as much as digits as its factorization.

49218651233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The spelling of 49218651233 in words is "forty-nine billion, two hundred eighteen million, six hundred fifty-one thousand, two hundred thirty-three".