2087801892 has 180 divisors, whose sum is σ = 6328065744. Its totient is φ = 595157760.

The previous prime is 2087801873. The next prime is 2087801897. The reversal of 2087801892 is 2981087802.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2087801897) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1028983 + ... + 1031009.

Almost surely, 2^2087801892 is an apocalyptic number.

2087801892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2087801892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3164032872).

2087801892 is an abundant number, since it is smaller than the sum of its proper divisors (4240263852).

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

2087801892 is a wasteful number, since it uses less digits than its factorization.

2087801892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 2087801892 is about 45692.4708458626. The cubic root of 2087801892 is about 1278.0948815359.

The spelling of 2087801892 in words is "two billion, eighty-seven million, eight hundred one thousand, eight hundred ninety-two".