2139880580 has 12 divisors (see below), whose sum is σ = 4493749260. Its totient is φ = 855952224.

The previous prime is 2139880577. The next prime is 2139880583. The reversal of 2139880580 is 850889312.

It is an interprime number because it is at equal distance from previous prime (2139880577) and next prime (2139880583).

It can be written as a sum of positive squares in 2 ways, for example, as 1429444864 + 710435716 = 37808^2 + 26654^2 .

It is a super-3 number, since 3×2139880580³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2139880583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53496995 + ... + 53497034.

It is an arithmetic number, because the mean of its divisors is an integer number (374479105).

Almost surely, 2^2139880580 is an apocalyptic number.

2139880580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2139880580 is an abundant number, since it is smaller than the sum of its proper divisors (2353868680).

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

2139880580 is a wasteful number, since it uses less digits than its factorization.

2139880580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106994038 (or 106994036 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 2139880580 is about 46258.8432626671. The cubic root of 2139880580 is about 1288.6347714378.

The spelling of 2139880580 in words is "two billion, one hundred thirty-nine million, eight hundred eighty thousand, five hundred eighty".