49382640469 has 2 divisors, whose sum is σ = 49382640470. Its totient is φ = 49382640468.

The previous prime is 49382640389. The next prime is 49382640473. The reversal of 49382640469 is 96404628394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39377639844 + 10005000625 = 198438^2 + 100025^2 .

It is a cyclic number.

It is not a de Polignac number, because 49382640469 - 2³¹ = 47235156821 is a prime.

It is a super-2 number, since 2×49382640469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49382640269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24691320234 + 24691320235.

It is an arithmetic number, because the mean of its divisors is an integer number (24691320235).

Almost surely, 2^49382640469 is an apocalyptic number.

It is an amenable number.

49382640469 is a deficient number, since it is larger than the sum of its proper divisors (1).

49382640469 is an equidigital number, since it uses as much as digits as its factorization.

49382640469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 49382640469 in words is "forty-nine billion, three hundred eighty-two million, six hundred forty thousand, four hundred sixty-nine".