49805036321 has 2 divisors, whose sum is σ = 49805036322. Its totient is φ = 49805036320.

The previous prime is 49805036299. The next prime is 49805036377. The reversal of 49805036321 is 12363050894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42822094225 + 6982942096 = 206935^2 + 83564^2 .

It is a cyclic number.

It is not a de Polignac number, because 49805036321 - 2²⁶ = 49737927457 is a prime.

It is a super-2 number, since 2×49805036321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49805036621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24902518160 + 24902518161.

It is an arithmetic number, because the mean of its divisors is an integer number (24902518161).

Almost surely, 2^49805036321 is an apocalyptic number.

It is an amenable number.

49805036321 is a deficient number, since it is larger than the sum of its proper divisors (1).

49805036321 is an equidigital number, since it uses as much as digits as its factorization.

49805036321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 49805036321 in words is "forty-nine billion, eight hundred five million, thirty-six thousand, three hundred twenty-one".