8480778331 has 4 divisors (see below), whose sum is σ = 8482131000. Its totient is φ = 8479425664.

The previous prime is 8480778301. The next prime is 8480778337. The reversal of 8480778331 is 1338770848.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8480778331 - 2⁹ = 8480777819 is a prime.

It is a super-2 number, since 2×8480778331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8480778337) 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, 666886 + ... + 679483.

It is an arithmetic number, because the mean of its divisors is an integer number (2120532750).

Almost surely, 2^8480778331 is an apocalyptic number.

8480778331 is a deficient number, since it is larger than the sum of its proper divisors (1352669).

8480778331 is a wasteful number, since it uses less digits than its factorization.

8480778331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352668.

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 8480778331 is about 92091.1414360795. The cubic root of 8480778331 is about 2039.2880325794.

The spelling of 8480778331 in words is "eight billion, four hundred eighty million, seven hundred seventy-eight thousand, three hundred thirty-one".