49390909361 has 2 divisors, whose sum is σ = 49390909362. Its totient is φ = 49390909360.

The previous prime is 49390909339. The next prime is 49390909417. The reversal of 49390909361 is 16390909394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28818457600 + 20572451761 = 169760^2 + 143431^2 .

It is a cyclic number.

It is not a de Polignac number, because 49390909361 - 2¹⁰ = 49390908337 is a prime.

It is not a weakly prime, because it can be changed into another prime (49390909301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24695454680 + 24695454681.

It is an arithmetic number, because the mean of its divisors is an integer number (24695454681).

Almost surely, 2^49390909361 is an apocalyptic number.

It is an amenable number.

49390909361 is a deficient number, since it is larger than the sum of its proper divisors (1).

49390909361 is an equidigital number, since it uses as much as digits as its factorization.

49390909361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1417176, while the sum is 53.

The spelling of 49390909361 in words is "forty-nine billion, three hundred ninety million, nine hundred nine thousand, three hundred sixty-one".