49850131987 has 2 divisors, whose sum is σ = 49850131988. Its totient is φ = 49850131986.

The previous prime is 49850131913. The next prime is 49850131997. The reversal of 49850131987 is 78913105894.

It is a happy number.

49850131987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49850131987 - 2²³ = 49841743379 is a prime.

It is not a weakly prime, because it can be changed into another prime (49850131997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24925065993 + 24925065994.

It is an arithmetic number, because the mean of its divisors is an integer number (24925065994).

Almost surely, 2^49850131987 is an apocalyptic number.

49850131987 is a deficient number, since it is larger than the sum of its proper divisors (1).

49850131987 is an equidigital number, since it uses as much as digits as its factorization.

49850131987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 49850131987 in words is "forty-nine billion, eight hundred fifty million, one hundred thirty-one thousand, nine hundred eighty-seven".