2957187890 has 32 divisors (see below), whose sum is σ = 5460882624. Its totient is φ = 1152584640.

The previous prime is 2957187851. The next prime is 2957187899. The reversal of 2957187890 is 987817592.

It is not an unprimeable number, because it can be changed into a prime (2957187899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42617 + ... + 87923.

It is an arithmetic number, because the mean of its divisors is an integer number (170652582).

Almost surely, 2^2957187890 is an apocalyptic number.

2957187890 is a deficient number, since it is larger than the sum of its proper divisors (2503694734).

2957187890 is a wasteful number, since it uses less digits than its factorization.

2957187890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45482.

The product of its (nonzero) digits is 2540160, while the sum is 56.

The square root of 2957187890 is about 54380.0320889938. The cubic root of 2957187890 is about 1435.3560351182.

The spelling of 2957187890 in words is "two billion, nine hundred fifty-seven million, one hundred eighty-seven thousand, eight hundred ninety".