2068149880 has 64 divisors (see below), whose sum is σ = 4974177600. Its totient is φ = 771978240.

The previous prime is 2068149869. The next prime is 2068149899. The reversal of 2068149880 is 889418602.

It is a super-2 number, since 2×2068149880² = 8554487852288028800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 2068149880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10306 + ... + 65134.

It is an arithmetic number, because the mean of its divisors is an integer number (77721525).

Almost surely, 2^2068149880 is an apocalyptic number.

2068149880 is a gapful number since it is divisible by the number (20) 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 2068149880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2487088800).

2068149880 is an abundant number, since it is smaller than the sum of its proper divisors (2906027720).

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

2068149880 is a wasteful number, since it uses less digits than its factorization.

2068149880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54904 (or 54900 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 2068149880 is about 45476.9159024664. The cubic root of 2068149880 is about 1274.0720927702.

The spelling of 2068149880 in words is "two billion, sixty-eight million, one hundred forty-nine thousand, eight hundred eighty".