1880368885 has 4 divisors (see below), whose sum is σ = 2256442668. Its totient is φ = 1504295104.

The previous prime is 1880368883. The next prime is 1880368913. The reversal of 1880368885 is 5888630881.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 537219684 + 1343149201 = 23178^2 + 36649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1880368885 - 2¹ = 1880368883 is a prime.

It is a super-2 number, since 2×1880368885² = 7071574287352286450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1880368883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188036884 + ... + 188036893.

It is an arithmetic number, because the mean of its divisors is an integer number (564110667).

Almost surely, 2^1880368885 is an apocalyptic number.

It is an amenable number.

1880368885 is a deficient number, since it is larger than the sum of its proper divisors (376073783).

1880368885 is an equidigital number, since it uses as much as digits as its factorization.

1880368885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376073782.

The product of its (nonzero) digits is 2949120, while the sum is 55.

The square root of 1880368885 is about 43363.2204177688. The cubic root of 1880368885 is about 1234.2818763781.

The spelling of 1880368885 in words is "one billion, eight hundred eighty million, three hundred sixty-eight thousand, eight hundred eighty-five".