3181485679 has 2 divisors, whose sum is σ = 3181485680. Its totient is φ = 3181485678.

The previous prime is 3181485623. The next prime is 3181485719. The reversal of 3181485679 is 9765841813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3181485679 - 2¹³ = 3181477487 is a prime.

It is a super-2 number, since 2×3181485679² = 20243702251364182082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3181488679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1590742839 + 1590742840.

It is an arithmetic number, because the mean of its divisors is an integer number (1590742840).

Almost surely, 2^3181485679 is an apocalyptic number.

3181485679 is a deficient number, since it is larger than the sum of its proper divisors (1).

3181485679 is an equidigital number, since it uses as much as digits as its factorization.

3181485679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 52.

The square root of 3181485679 is about 56404.6600823017. The cubic root of 3181485679 is about 1470.7651282405.

The spelling of 3181485679 in words is "three billion, one hundred eighty-one million, four hundred eighty-five thousand, six hundred seventy-nine".