7137643819 has 2 divisors, whose sum is σ = 7137643820. Its totient is φ = 7137643818.

The previous prime is 7137643811. The next prime is 7137643837. The reversal of 7137643819 is 9183467317.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7137643819 - 2³ = 7137643811 is a prime.

It is a super-2 number, since 2×7137643819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7137643811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3568821909 + 3568821910.

It is an arithmetic number, because the mean of its divisors is an integer number (3568821910).

Almost surely, 2^7137643819 is an apocalyptic number.

7137643819 is a deficient number, since it is larger than the sum of its proper divisors (1).

7137643819 is an equidigital number, since it uses as much as digits as its factorization.

7137643819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 49.

The square root of 7137643819 is about 84484.5774032160. The cubic root of 7137643819 is about 1925.3881328120.

The spelling of 7137643819 in words is "seven billion, one hundred thirty-seven million, six hundred forty-three thousand, eight hundred nineteen".