194032440787 has 2 divisors, whose sum is σ = 194032440788. Its totient is φ = 194032440786.

The previous prime is 194032440769. The next prime is 194032440799. The reversal of 194032440787 is 787044230491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194032440787 - 2²³ = 194024052179 is a prime.

It is a super-2 number, since 2×194032440787² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 194032440787.

It is not a weakly prime, because it can be changed into another prime (194032440757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97016220393 + 97016220394.

It is an arithmetic number, because the mean of its divisors is an integer number (97016220394).

Almost surely, 2^194032440787 is an apocalyptic number.

194032440787 is a deficient number, since it is larger than the sum of its proper divisors (1).

194032440787 is an equidigital number, since it uses as much as digits as its factorization.

194032440787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 194032440787 in words is "one hundred ninety-four billion, thirty-two million, four hundred forty thousand, seven hundred eighty-seven".