2091386862 has 24 divisors (see below), whose sum is σ = 4534439520. Its totient is φ = 696651840.

The previous prime is 2091386861. The next prime is 2091386879. The reversal of 2091386862 is 2686831902.

2091386862 is a `hidden beast` number, since 209 + 1 + 386 + 8 + 62 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091386861) 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 11 ways as a sum of consecutive naturals, for example, 12214 + ... + 65817.

It is an arithmetic number, because the mean of its divisors is an integer number (188934980).

Almost surely, 2^2091386862 is an apocalyptic number.

2091386862 is an abundant number, since it is smaller than the sum of its proper divisors (2443052658).

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

2091386862 is a wasteful number, since it uses less digits than its factorization.

2091386862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79528 (or 79525 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 2091386862 is about 45731.6833497303. The cubic root of 2091386862 is about 1278.8260032282.

It can be divided in two parts, 209138 and 6862, that added together give a cube (216000 = 60³).

The spelling of 2091386862 in words is "two billion, ninety-one million, three hundred eighty-six thousand, eight hundred sixty-two".