3871224417865 has 8 divisors (see below), whose sum is σ = 5309107773120. Its totient is φ = 2654553886512.

The previous prime is 3871224417799. The next prime is 3871224417869. The reversal of 3871224417865 is 5687144221783.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3871224417865 - 2¹⁵ = 3871224385097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3871224417869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55303205935 + ... + 55303206004.

It is an arithmetic number, because the mean of its divisors is an integer number (663638471640).

Almost surely, 2^{3871224417865} is an apocalyptic number.

3871224417865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3871224417865 is a deficient number, since it is larger than the sum of its proper divisors (1437883355255).

3871224417865 is a wasteful number, since it uses less digits than its factorization.

3871224417865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110606411951.

The product of its digits is 18063360, while the sum is 58.

The spelling of 3871224417865 in words is "three trillion, eight hundred seventy-one billion, two hundred twenty-four million, four hundred seventeen thousand, eight hundred sixty-five".