2071985188 has 144 divisors (see below), whose sum is σ = 4833454080. Its totient is φ = 768144384.

The previous prime is 2071985173. The next prime is 2071985203. The reversal of 2071985188 is 8815891702.

It is an interprime number because it is at equal distance from previous prime (2071985173) and next prime (2071985203).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6148156 + ... + 6148492.

Almost surely, 2^2071985188 is an apocalyptic number.

2071985188 is a gapful number since it is divisible by the number (28) 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 2071985188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2416727040).

2071985188 is an abundant number, since it is smaller than the sum of its proper divisors (2761468892).

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

2071985188 is a wasteful number, since it uses less digits than its factorization.

2071985188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 49.

The square root of 2071985188 is about 45519.0640061942. The cubic root of 2071985188 is about 1274.8591797312.

The spelling of 2071985188 in words is "two billion, seventy-one million, nine hundred eighty-five thousand, one hundred eighty-eight".