195983462537 has 2 divisors, whose sum is σ = 195983462538. Its totient is φ = 195983462536.

The previous prime is 195983462471. The next prime is 195983462561. The reversal of 195983462537 is 735264389591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140039859961 + 55943602576 = 374219^2 + 236524^2 .

It is a cyclic number.

It is not a de Polignac number, because 195983462537 - 2³² = 191688495241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195983462537.

It is not a weakly prime, because it can be changed into another prime (195983462567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97991731268 + 97991731269.

It is an arithmetic number, because the mean of its divisors is an integer number (97991731269).

Almost surely, 2^195983462537 is an apocalyptic number.

It is an amenable number.

195983462537 is a deficient number, since it is larger than the sum of its proper divisors (1).

195983462537 is an equidigital number, since it uses as much as digits as its factorization.

195983462537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48988800, while the sum is 62.

The spelling of 195983462537 in words is "one hundred ninety-five billion, nine hundred eighty-three million, four hundred sixty-two thousand, five hundred thirty-seven".