190589457397 has 2 divisors, whose sum is σ = 190589457398. Its totient is φ = 190589457396.

The previous prime is 190589457371. The next prime is 190589457419. The reversal of 190589457397 is 793754985091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139787002161 + 50802455236 = 373881^2 + 225394^2 .

It is a cyclic number.

It is not a de Polignac number, because 190589457397 - 2¹¹ = 190589455349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190589454397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95294728698 + 95294728699.

It is an arithmetic number, because the mean of its divisors is an integer number (95294728699).

Almost surely, 2^190589457397 is an apocalyptic number.

It is an amenable number.

190589457397 is a deficient number, since it is larger than the sum of its proper divisors (1).

190589457397 is an equidigital number, since it uses as much as digits as its factorization.

190589457397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85730400, while the sum is 67.

The spelling of 190589457397 in words is "one hundred ninety billion, five hundred eighty-nine million, four hundred fifty-seven thousand, three hundred ninety-seven".