196350021587 has 2 divisors, whose sum is σ = 196350021588. Its totient is φ = 196350021586.

The previous prime is 196350021541. The next prime is 196350021599. The reversal of 196350021587 is 785120053691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196350021587 - 2²⁰ = 196348973011 is a prime.

It is not a weakly prime, because it can be changed into another prime (196350021887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98175010793 + 98175010794.

It is an arithmetic number, because the mean of its divisors is an integer number (98175010794).

Almost surely, 2^196350021587 is an apocalyptic number.

196350021587 is a deficient number, since it is larger than the sum of its proper divisors (1).

196350021587 is an equidigital number, since it uses as much as digits as its factorization.

196350021587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 196350021587 in words is "one hundred ninety-six billion, three hundred fifty million, twenty-one thousand, five hundred eighty-seven".