49689106477 has 2 divisors, whose sum is σ = 49689106478. Its totient is φ = 49689106476.

The previous prime is 49689106403. The next prime is 49689106559. The reversal of 49689106477 is 77460198694.

49689106477 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 can be written as a sum of positive squares in only one way, i.e., 32835614436 + 16853492041 = 181206^2 + 129821^2 .

It is a cyclic number.

It is not a de Polignac number, because 49689106477 - 2³¹ = 47541622829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49689806477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24844553238 + 24844553239.

It is an arithmetic number, because the mean of its divisors is an integer number (24844553239).

Almost surely, 2^49689106477 is an apocalyptic number.

It is an amenable number.

49689106477 is a deficient number, since it is larger than the sum of its proper divisors (1).

49689106477 is an equidigital number, since it uses as much as digits as its factorization.

49689106477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 49689106477 in words is "forty-nine billion, six hundred eighty-nine million, one hundred six thousand, four hundred seventy-seven".