3891848623897 has 16 divisors (see below), whose sum is σ = 4193501195520. Its totient is φ = 3590522295552.

The previous prime is 3891848623879. The next prime is 3891848623963. The reversal of 3891848623897 is 7983268481983.

It is a cyclic number.

It is not a de Polignac number, because 3891848623897 - 2⁷ = 3891848623769 is a prime.

It is a super-2 number, since 2×3891848623897² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3891848623837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263543008 + ... + 263557774.

It is an arithmetic number, because the mean of its divisors is an integer number (262093824720).

Almost surely, 2^{3891848623897} is an apocalyptic number.

It is an amenable number.

3891848623897 is a deficient number, since it is larger than the sum of its proper divisors (301652571623).

3891848623897 is a wasteful number, since it uses less digits than its factorization.

3891848623897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24432.

The product of its digits is 1003290624, while the sum is 76.

The spelling of 3891848623897 in words is "three trillion, eight hundred ninety-one billion, eight hundred forty-eight million, six hundred twenty-three thousand, eight hundred ninety-seven".