6687373801 has 2 divisors, whose sum is σ = 6687373802. Its totient is φ = 6687373800.

The previous prime is 6687373753. The next prime is 6687373811. The reversal of 6687373801 is 1083737866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5316597225 + 1370776576 = 72915^2 + 37024^2 .

It is a cyclic number.

It is not a de Polignac number, because 6687373801 - 2¹⁷ = 6687242729 is a prime.

It is not a weakly prime, because it can be changed into another prime (6687373811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3343686900 + 3343686901.

It is an arithmetic number, because the mean of its divisors is an integer number (3343686901).

Almost surely, 2^6687373801 is an apocalyptic number.

It is an amenable number.

6687373801 is a deficient number, since it is larger than the sum of its proper divisors (1).

6687373801 is an equidigital number, since it uses as much as digits as its factorization.

6687373801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 6687373801 is about 81776.3645621398. The cubic root of 6687373801 is about 1884.0186596699.

The spelling of 6687373801 in words is "six billion, six hundred eighty-seven million, three hundred seventy-three thousand, eight hundred one".