765439316897476 has 81 divisors (see below), whose sum is σ = 1458790998535143. Its totient is φ = 351268103459520.

The previous prime is 765439316897443. The next prime is 765439316897483. The reversal of 765439316897476 is 674798613934567.

The square root of 765439316897476 is 27666574.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 589531511272900 + 175907805624576 = 24280270^2 + 13263024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 765439316897393 and 765439316897402.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 130198894305 + ... + 130198900183.

Almost surely, 2^{765439316897476} is an apocalyptic number.

765439316897476 is the 27666574-th square number.

It is an amenable number.

765439316897476 is a deficient number, since it is larger than the sum of its proper divisors (693351681637667).

765439316897476 is an frugal number, since it uses more digits than its factorization.

765439316897476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12150 (or 6075 counting only the distinct ones).

The product of its digits is 34566497280, while the sum is 85.

The spelling of 765439316897476 in words is "seven hundred sixty-five trillion, four hundred thirty-nine billion, three hundred sixteen million, eight hundred ninety-seven thousand, four hundred seventy-six".