766763436437 has 2 divisors, whose sum is σ = 766763436438. Its totient is φ = 766763436436.

The previous prime is 766763436377. The next prime is 766763436449. The reversal of 766763436437 is 734634367667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475977187921 + 290786248516 = 689911^2 + 539246^2 .

It is a cyclic number.

It is not a de Polignac number, because 766763436437 - 2¹⁴ = 766763420053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 766763436437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766763436457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383381718218 + 383381718219.

It is an arithmetic number, because the mean of its divisors is an integer number (383381718219).

Almost surely, 2^766763436437 is an apocalyptic number.

It is an amenable number.

766763436437 is a deficient number, since it is larger than the sum of its proper divisors (1).

766763436437 is an equidigital number, since it uses as much as digits as its factorization.

766763436437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192036096, while the sum is 62.

The spelling of 766763436437 in words is "seven hundred sixty-six billion, seven hundred sixty-three million, four hundred thirty-six thousand, four hundred thirty-seven".