100194634987 has 2 divisors, whose sum is σ = 100194634988. Its totient is φ = 100194634986.

The previous prime is 100194634931. The next prime is 100194634993. The reversal of 100194634987 is 789436491001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100194634987 - 2¹¹ = 100194632939 is a prime.

It is not a weakly prime, because it can be changed into another prime (100194634997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50097317493 + 50097317494.

It is an arithmetic number, because the mean of its divisors is an integer number (50097317494).

Almost surely, 2^100194634987 is an apocalyptic number.

100194634987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100194634987 is an equidigital number, since it uses as much as digits as its factorization.

100194634987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 100194634987 in words is "one hundred billion, one hundred ninety-four million, six hundred thirty-four thousand, nine hundred eighty-seven".