2391486671985 has 16 divisors (see below), whose sum is σ = 3826414442880. Its totient is φ = 1275447635840.

The previous prime is 2391486671953. The next prime is 2391486671989. The reversal of 2391486671985 is 5891766841932.

It is not a de Polignac number, because 2391486671985 - 2⁵ = 2391486671953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2391486671989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052980 + ... + 2427290.

It is an arithmetic number, because the mean of its divisors is an integer number (239150902680).

Almost surely, 2^{2391486671985} is an apocalyptic number.

It is an amenable number.

2391486671985 is a deficient number, since it is larger than the sum of its proper divisors (1434927770895).

2391486671985 is a wasteful number, since it uses less digits than its factorization.

2391486671985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490328.

The product of its digits is 156764160, while the sum is 69.

The spelling of 2391486671985 in words is "two trillion, three hundred ninety-one billion, four hundred eighty-six million, six hundred seventy-one thousand, nine hundred eighty-five".