28891958962 has 8 divisors (see below), whose sum is σ = 43342998300. Its totient is φ = 14444292864.

The previous prime is 28891958947. The next prime is 28891958969. The reversal of 28891958962 is 26985919882.

It can be written as a sum of positive squares in 2 ways, for example, as 28773997641 + 117961321 = 169629^2 + 10861^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28891958969) 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 3 ways as a sum of consecutive naturals, for example, 821787 + ... + 856222.

Almost surely, 2^28891958962 is an apocalyptic number.

28891958962 is a deficient number, since it is larger than the sum of its proper divisors (14451039338).

28891958962 is a wasteful number, since it uses less digits than its factorization.

28891958962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686620.

The product of its digits is 44789760, while the sum is 67.

The spelling of 28891958962 in words is "twenty-eight billion, eight hundred ninety-one million, nine hundred fifty-eight thousand, nine hundred sixty-two".