49209198679 has 2 divisors, whose sum is σ = 49209198680. Its totient is φ = 49209198678.

The previous prime is 49209198653. The next prime is 49209198707. The reversal of 49209198679 is 97689190294.

49209198679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49209198679 - 2¹³ = 49209190487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49209198679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49209178679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24604599339 + 24604599340.

It is an arithmetic number, because the mean of its divisors is an integer number (24604599340).

Almost surely, 2^49209198679 is an apocalyptic number.

49209198679 is a deficient number, since it is larger than the sum of its proper divisors (1).

49209198679 is an equidigital number, since it uses as much as digits as its factorization.

49209198679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17635968, while the sum is 64.

The spelling of 49209198679 in words is "forty-nine billion, two hundred nine million, one hundred ninety-eight thousand, six hundred seventy-nine".