49212921599 has 2 divisors, whose sum is σ = 49212921600. Its totient is φ = 49212921598.

The previous prime is 49212921577. The next prime is 49212921677. The reversal of 49212921599 is 99512921294.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49212921599 - 2¹² = 49212917503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49212921599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49212921509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24606460799 + 24606460800.

It is an arithmetic number, because the mean of its divisors is an integer number (24606460800).

Almost surely, 2^49212921599 is an apocalyptic number.

49212921599 is a deficient number, since it is larger than the sum of its proper divisors (1).

49212921599 is an equidigital number, since it uses as much as digits as its factorization.

49212921599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1049760, while the sum is 53.

The spelling of 49212921599 in words is "forty-nine billion, two hundred twelve million, nine hundred twenty-one thousand, five hundred ninety-nine".