7191799037 has 2 divisors, whose sum is σ = 7191799038. Its totient is φ = 7191799036.

The previous prime is 7191798997. The next prime is 7191799057. The reversal of 7191799037 is 7309971917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3941202841 + 3250596196 = 62779^2 + 57014^2 .

It is a cyclic number.

It is not a de Polignac number, because 7191799037 - 2¹⁶ = 7191733501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7191799037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7191799057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3595899518 + 3595899519.

It is an arithmetic number, because the mean of its divisors is an integer number (3595899519).

Almost surely, 2^7191799037 is an apocalyptic number.

It is an amenable number.

7191799037 is a deficient number, since it is larger than the sum of its proper divisors (1).

7191799037 is an equidigital number, since it uses as much as digits as its factorization.

7191799037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750141, while the sum is 53.

The square root of 7191799037 is about 84804.4753359161. The cubic root of 7191799037 is about 1930.2453478351.

The spelling of 7191799037 in words is "seven billion, one hundred ninety-one million, seven hundred ninety-nine thousand, thirty-seven".