3861957864967 has 2 divisors, whose sum is σ = 3861957864968. Its totient is φ = 3861957864966.

The previous prime is 3861957864917. The next prime is 3861957864971. The reversal of 3861957864967 is 7694687591683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3861957864967 - 2⁷ = 3861957864839 is a prime.

It is a super-2 number, since 2×3861957864967² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3861957864917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930978932483 + 1930978932484.

It is an arithmetic number, because the mean of its divisors is an integer number (1930978932484).

Almost surely, 2^{3861957864967} is an apocalyptic number.

3861957864967 is a deficient number, since it is larger than the sum of its proper divisors (1).

3861957864967 is an equidigital number, since it uses as much as digits as its factorization.

3861957864967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3292047360, while the sum is 79.

The spelling of 3861957864967 in words is "three trillion, eight hundred sixty-one billion, nine hundred fifty-seven million, eight hundred sixty-four thousand, nine hundred sixty-seven".