2091377862 has 192 divisors, whose sum is σ = 5690880000. Its totient is φ = 542142720.

The previous prime is 2091377851. The next prime is 2091377887. The reversal of 2091377862 is 2687731902.

It is a super-2 number, since 2×2091377862² = 8747722723327382088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4190889 + ... + 4191387.

It is an arithmetic number, because the mean of its divisors is an integer number (29640000).

Almost surely, 2^2091377862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2091377862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2845440000).

2091377862 is an abundant number, since it is smaller than the sum of its proper divisors (3599502138).

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

2091377862 is a wasteful number, since it uses less digits than its factorization.

2091377862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 2091377862 is about 45731.5849495729. The cubic root of 2091377862 is about 1278.8241688074.

The spelling of 2091377862 in words is "two billion, ninety-one million, three hundred seventy-seven thousand, eight hundred sixty-two".