1940588636587 has 2 divisors, whose sum is σ = 1940588636588. Its totient is φ = 1940588636586.

The previous prime is 1940588636549. The next prime is 1940588636713. The reversal of 1940588636587 is 7856368850491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1940588636587 - 2³¹ = 1938441152939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1940588636387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970294318293 + 970294318294.

It is an arithmetic number, because the mean of its divisors is an integer number (970294318294).

Almost surely, 2^{1940588636587} is an apocalyptic number.

1940588636587 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940588636587 is an equidigital number, since it uses as much as digits as its factorization.

1940588636587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 348364800, while the sum is 70.

The spelling of 1940588636587 in words is "one trillion, nine hundred forty billion, five hundred eighty-eight million, six hundred thirty-six thousand, five hundred eighty-seven".