3871212831534 has 16 divisors (see below), whose sum is σ = 7742561925888. Its totient is φ = 1290381566712.

The previous prime is 3871212831527. The next prime is 3871212831539. The reversal of 3871212831534 is 4351382121783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871212831539) 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 7 ways as a sum of consecutive naturals, for example, 5306422 + ... + 5991705.

It is an arithmetic number, because the mean of its divisors is an integer number (483910120368).

Almost surely, 2^{3871212831534} is an apocalyptic number.

3871212831534 is an abundant number, since it is smaller than the sum of its proper divisors (3871349094354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3871212831534 is a wasteful number, since it uses less digits than its factorization.

3871212831534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11355239.

The product of its digits is 967680, while the sum is 48.

The spelling of 3871212831534 in words is "three trillion, eight hundred seventy-one billion, two hundred twelve million, eight hundred thirty-one thousand, five hundred thirty-four".