3871207504878 has 64 divisors (see below), whose sum is σ = 8909896320000. Its totient is φ = 1098384931584.

The previous prime is 3871207504873. The next prime is 3871207504909. The reversal of 3871207504878 is 8784057021783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871207504873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28211458 + ... + 28348346.

It is an arithmetic number, because the mean of its divisors is an integer number (139217130000).

Almost surely, 2^{3871207504878} is an apocalyptic number.

3871207504878 is an abundant number, since it is smaller than the sum of its proper divisors (5038688815122).

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

3871207504878 is a wasteful number, since it uses less digits than its factorization.

3871207504878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141569.

The product of its (nonzero) digits is 21073920, while the sum is 60.

The spelling of 3871207504878 in words is "three trillion, eight hundred seventy-one billion, two hundred seven million, five hundred four thousand, eight hundred seventy-eight".