3871205472400 has 120 divisors (see below), whose sum is σ = 10683181143360. Its totient is φ = 1320532846080.

The previous prime is 3871205472397. The next prime is 3871205472457. The reversal of 3871205472400 is 42745021783.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2957470 + ... + 4060669.

It is an arithmetic number, because the mean of its divisors is an integer number (89026509528).

Almost surely, 2^{3871205472400} is an apocalyptic number.

It is an amenable number.

3871205472400 is an abundant number, since it is smaller than the sum of its proper divisors (6811975670960).

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

3871205472400 is a wasteful number, since it uses less digits than its factorization.

3871205472400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7018361 (or 7018350 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 3871205472400 in words is "three trillion, eight hundred seventy-one billion, two hundred five million, four hundred seventy-two thousand, four hundred".