1880000782290 has 48 divisors (see below), whose sum is σ = 4888117038168. Its totient is φ = 501321746688.

The previous prime is 1880000782271. The next prime is 1880000782339. The reversal of 1880000782290 is 922870000881.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 947719773081 + 932281009209 = 973509^2 + 965547^2 .

It is a super-2 number, since 2×1880000782290² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4007494 + ... + 4451966.

Almost surely, 2^{1880000782290} is an apocalyptic number.

1880000782290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1880000782290 is an abundant number, since it is smaller than the sum of its proper divisors (3008116255878).

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

1880000782290 is a wasteful number, since it uses less digits than its factorization.

1880000782290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491483 (or 491480 counting only the distinct ones).

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

The spelling of 1880000782290 in words is "one trillion, eight hundred eighty billion, seven hundred eighty-two thousand, two hundred ninety".