2891495148 has 48 divisors (see below), whose sum is σ = 6897765504. Its totient is φ = 942480000.

The previous prime is 2891495137. The next prime is 2891495149. The reversal of 2891495148 is 8415941982.

It is a self number, because there is not a number n which added to its sum of digits gives 2891495148.

It is not an unprimeable number, because it can be changed into a prime (2891495149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97023 + ... + 123273.

It is an arithmetic number, because the mean of its divisors is an integer number (143703448).

Almost surely, 2^2891495148 is an apocalyptic number.

It is an amenable number.

2891495148 is an abundant number, since it is smaller than the sum of its proper divisors (4006270356).

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

2891495148 is a wasteful number, since it uses less digits than its factorization.

2891495148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26462 (or 26460 counting only the distinct ones).

The product of its digits is 829440, while the sum is 51.

The square root of 2891495148 is about 53772.6245221488. The cubic root of 2891495148 is about 1424.6477262797.

The spelling of 2891495148 in words is "two billion, eight hundred ninety-one million, four hundred ninety-five thousand, one hundred forty-eight".