6481669131 has 96 divisors (see below), whose sum is σ = 11508596736. Its totient is φ = 3436992000.

The previous prime is 6481669097. The next prime is 6481669153. The reversal of 6481669131 is 1319661846.

It is not a de Polignac number, because 6481669131 - 2¹¹ = 6481667083 is a prime.

It is a super-2 number, since 2×6481669131² = 84024069447516590322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6481665131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4883790 + ... + 4885116.

It is an arithmetic number, because the mean of its divisors is an integer number (119881216).

Almost surely, 2^6481669131 is an apocalyptic number.

6481669131 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6481669131 is a deficient number, since it is larger than the sum of its proper divisors (5026927605).

6481669131 is a wasteful number, since it uses less digits than its factorization.

6481669131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1470 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 6481669131 is about 80508.8139957359. The cubic root of 6481669131 is about 1864.4995632284.

It can be divided in two parts, 6481669 and 131, that added together give a triangular number (6481800 = T₃₆₀₀).

The spelling of 6481669131 in words is "six billion, four hundred eighty-one million, six hundred sixty-nine thousand, one hundred thirty-one".