49291662857 has 2 divisors, whose sum is σ = 49291662858. Its totient is φ = 49291662856.

The previous prime is 49291662793. The next prime is 49291662899. The reversal of 49291662857 is 75826619294.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47969322361 + 1322340496 = 219019^2 + 36364^2 .

It is a cyclic number.

It is not a de Polignac number, because 49291662857 - 2⁶ = 49291662793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49291662796 and 49291662805.

It is not a weakly prime, because it can be changed into another prime (49291632857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24645831428 + 24645831429.

It is an arithmetic number, because the mean of its divisors is an integer number (24645831429).

Almost surely, 2^49291662857 is an apocalyptic number.

It is an amenable number.

49291662857 is a deficient number, since it is larger than the sum of its proper divisors (1).

49291662857 is an equidigital number, since it uses as much as digits as its factorization.

49291662857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 59.

The spelling of 49291662857 in words is "forty-nine billion, two hundred ninety-one million, six hundred sixty-two thousand, eight hundred fifty-seven".