7771364651 has 2 divisors, whose sum is σ = 7771364652. Its totient is φ = 7771364650.

The previous prime is 7771364563. The next prime is 7771364677. The reversal of 7771364651 is 1564631777.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7771364651 - 2²⁶ = 7704255787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7771364596 and 7771364605.

It is not a weakly prime, because it can be changed into another prime (7771364351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3885682325 + 3885682326.

It is an arithmetic number, because the mean of its divisors is an integer number (3885682326).

Almost surely, 2^7771364651 is an apocalyptic number.

7771364651 is a deficient number, since it is larger than the sum of its proper divisors (1).

7771364651 is an equidigital number, since it uses as much as digits as its factorization.

7771364651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 740880, while the sum is 47.

The square root of 7771364651 is about 88155.3438595755. The cubic root of 7771364651 is about 1980.7626089189.

The spelling of 7771364651 in words is "seven billion, seven hundred seventy-one million, three hundred sixty-four thousand, six hundred fifty-one".