1371011886 has 64 divisors (see below), whose sum is σ = 3239818560. Its totient is φ = 428267520.

The previous prime is 1371011881. The next prime is 1371011891. The reversal of 1371011886 is 6881101731.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1371011881) and next prime (1371011891).

It is a self number, because there is not a number n which added to its sum of digits gives 1371011886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371011881) 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, 218140 + ... + 224336.

It is an arithmetic number, because the mean of its divisors is an integer number (50622165).

Almost surely, 2^1371011886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1371011886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619909280).

1371011886 is an abundant number, since it is smaller than the sum of its proper divisors (1868806674).

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

1371011886 is a wasteful number, since it uses less digits than its factorization.

1371011886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466 (or 6460 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 1371011886 is about 37027.1776672217. The cubic root of 1371011886 is about 1110.9139149651.

The spelling of 1371011886 in words is "one billion, three hundred seventy-one million, eleven thousand, eight hundred eighty-six".