766363985441 has 4 divisors (see below), whose sum is σ = 766674634032. Its totient is φ = 766053336852.

The previous prime is 766363985437. The next prime is 766363985447. The reversal of 766363985441 is 144589363667.

766363985441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 766363985441 - 2² = 766363985437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (766363985447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155320595 + ... + 155325528.

It is an arithmetic number, because the mean of its divisors is an integer number (191668658508).

Almost surely, 2^766363985441 is an apocalyptic number.

It is an amenable number.

766363985441 is a deficient number, since it is larger than the sum of its proper divisors (310648591).

766363985441 is a wasteful number, since it uses less digits than its factorization.

766363985441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310648590.

The product of its digits is 78382080, while the sum is 62.

The spelling of 766363985441 in words is "seven hundred sixty-six billion, three hundred sixty-three million, nine hundred eighty-five thousand, four hundred forty-one".