194207252377 has 2 divisors, whose sum is σ = 194207252378. Its totient is φ = 194207252376.

The previous prime is 194207252339. The next prime is 194207252381. The reversal of 194207252377 is 773252702491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113473985881 + 80733266496 = 336859^2 + 284136^2 .

It is a cyclic number.

It is not a de Polignac number, because 194207252377 - 2³⁵ = 159847514009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194207252377.

It is not a weakly prime, because it can be changed into another prime (194207252677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97103626188 + 97103626189.

It is an arithmetic number, because the mean of its divisors is an integer number (97103626189).

Almost surely, 2^194207252377 is an apocalyptic number.

It is an amenable number.

194207252377 is a deficient number, since it is larger than the sum of its proper divisors (1).

194207252377 is an equidigital number, since it uses as much as digits as its factorization.

194207252377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 194207252377 in words is "one hundred ninety-four billion, two hundred seven million, two hundred fifty-two thousand, three hundred seventy-seven".