766440417403 has 16 divisors (see below), whose sum is σ = 829982350080. Its totient is φ = 705484806624.

The previous prime is 766440417401. The next prime is 766440417409. The reversal of 766440417403 is 304714044667.

It is not a de Polignac number, because 766440417403 - 2¹ = 766440417401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766440417401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3591001 + ... + 3798442.

It is an arithmetic number, because the mean of its divisors is an integer number (51873896880).

Almost surely, 2^766440417403 is an apocalyptic number.

766440417403 is a deficient number, since it is larger than the sum of its proper divisors (63541932677).

766440417403 is a wasteful number, since it uses less digits than its factorization.

766440417403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7389618.

The product of its (nonzero) digits is 1354752, while the sum is 46.

The spelling of 766440417403 in words is "seven hundred sixty-six billion, four hundred forty million, four hundred seventeen thousand, four hundred three".