49786971587 has 2 divisors, whose sum is σ = 49786971588. Its totient is φ = 49786971586.

The previous prime is 49786971547. The next prime is 49786971617. The reversal of 49786971587 is 78517968794.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49786971587 - 2¹⁶ = 49786906051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49786971587.

It is not a weakly prime, because it can be changed into another prime (49786971517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24893485793 + 24893485794.

It is an arithmetic number, because the mean of its divisors is an integer number (24893485794).

Almost surely, 2^49786971587 is an apocalyptic number.

49786971587 is a deficient number, since it is larger than the sum of its proper divisors (1).

49786971587 is an equidigital number, since it uses as much as digits as its factorization.

49786971587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 213373440, while the sum is 71.

The spelling of 49786971587 in words is "forty-nine billion, seven hundred eighty-six million, nine hundred seventy-one thousand, five hundred eighty-seven".