1995773870 has 16 divisors (see below), whose sum is σ = 3781466640. Its totient is φ = 756293184.

The previous prime is 1995773869. The next prime is 1995773903. The reversal of 1995773870 is 783775991.

It is a super-2 number, since 2×1995773870² = 7966226680349553800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5251847 + ... + 5252226.

It is an arithmetic number, because the mean of its divisors is an integer number (236341665).

Almost surely, 2^1995773870 is an apocalyptic number.

1995773870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1995773870 is a deficient number, since it is larger than the sum of its proper divisors (1785692770).

1995773870 is a wasteful number, since it uses less digits than its factorization.

1995773870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504099.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The square root of 1995773870 is about 44674.0849934277. The cubic root of 1995773870 is about 1259.0329924020.

The spelling of 1995773870 in words is "one billion, nine hundred ninety-five million, seven hundred seventy-three thousand, eight hundred seventy".