2025779859880 has 48 divisors (see below), whose sum is σ = 5302168720020. Its totient is φ = 694553094144.

The previous prime is 2025779859877. The next prime is 2025779859889. The reversal of 2025779859880 is 889589775202.

It can be written as a sum of positive squares in 2 ways, for example, as 1944858954724 + 80920905156 = 1394582^2 + 284466^2 .

It is a super-2 number, since 2×2025779859880² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is not an unprimeable number, because it can be changed into a prime (2025779859889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516778617 + ... + 516782536.

Almost surely, 2^{2025779859880} is an apocalyptic number.

2025779859880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2025779859880 is an abundant number, since it is smaller than the sum of its proper divisors (3276388860140).

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

2025779859880 is a wasteful number, since it uses less digits than its factorization.

2025779859880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033561178 (or 1033561167 counting only the distinct ones).

The product of its (nonzero) digits is 203212800, while the sum is 70.

The spelling of 2025779859880 in words is "two trillion, twenty-five billion, seven hundred seventy-nine million, eight hundred fifty-nine thousand, eight hundred eighty".