190097861687 has 2 divisors, whose sum is σ = 190097861688. Its totient is φ = 190097861686.

The previous prime is 190097861677. The next prime is 190097861693. The reversal of 190097861687 is 786168790091.

190097861687 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 190097861687 - 2¹² = 190097857591 is a prime.

It is a super-2 number, since 2×190097861687² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190097861677) 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, 95048930843 + 95048930844.

It is an arithmetic number, because the mean of its divisors is an integer number (95048930844).

Almost surely, 2^190097861687 is an apocalyptic number.

190097861687 is a deficient number, since it is larger than the sum of its proper divisors (1).

190097861687 is an equidigital number, since it uses as much as digits as its factorization.

190097861687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 62.

The spelling of 190097861687 in words is "one hundred ninety billion, ninety-seven million, eight hundred sixty-one thousand, six hundred eighty-seven".