2975881985 has 8 divisors (see below), whose sum is σ = 3571468200. Its totient is φ = 2380432384.

The previous prime is 2975881969. The next prime is 2975882003. The reversal of 2975881985 is 5891885792.

It can be written as a sum of positive squares in 4 ways, for example, as 146918641 + 2828963344 = 12121^2 + 53188^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2975881985 - 2⁴ = 2975881969 is a prime.

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, 22241 + ... + 80289.

It is an arithmetic number, because the mean of its divisors is an integer number (446433525).

Almost surely, 2^2975881985 is an apocalyptic number.

It is an amenable number.

2975881985 is a deficient number, since it is larger than the sum of its proper divisors (595586215).

2975881985 is a wasteful number, since it uses less digits than its factorization.

2975881985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68307.

The product of its digits is 14515200, while the sum is 62.

The square root of 2975881985 is about 54551.6451172648. The cubic root of 2975881985 is about 1438.3742559394.

The spelling of 2975881985 in words is "two billion, nine hundred seventy-five million, eight hundred eighty-one thousand, nine hundred eighty-five".