6815501000377 has 2 divisors, whose sum is σ = 6815501000378. Its totient is φ = 6815501000376.

The previous prime is 6815501000351. The next prime is 6815501000393. The reversal of 6815501000377 is 7730001055186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5949579558976 + 865921441401 = 2439176^2 + 930549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6815501000377 is a prime.

It is a super-2 number, since 2×6815501000377² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6815501000177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3407750500188 + 3407750500189.

It is an arithmetic number, because the mean of its divisors is an integer number (3407750500189).

Almost surely, 2^{6815501000377} is an apocalyptic number.

It is an amenable number.

6815501000377 is a deficient number, since it is larger than the sum of its proper divisors (1).

6815501000377 is an equidigital number, since it uses as much as digits as its factorization.

6815501000377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 6815501000377 in words is "six trillion, eight hundred fifteen billion, five hundred one million, three hundred seventy-seven", and thus it is an aban number.