766474004081 has 4 divisors (see below), whose sum is σ = 769182393072. Its totient is φ = 763765615092.

The previous prime is 766474004017. The next prime is 766474004089. The reversal of 766474004081 is 180400474667.

766474004081 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 766474004081 - 2⁶ = 766474004017 is a prime.

It is a super-2 number, since 2×766474004081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766474004089) 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, 1354194071 + ... + 1354194636.

It is an arithmetic number, because the mean of its divisors is an integer number (192295598268).

Almost surely, 2^766474004081 is an apocalyptic number.

It is an amenable number.

766474004081 is a deficient number, since it is larger than the sum of its proper divisors (2708388991).

766474004081 is a wasteful number, since it uses less digits than its factorization.

766474004081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708388990.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 766474004081 in words is "seven hundred sixty-six billion, four hundred seventy-four million, four thousand, eighty-one".