28902843971 has 2 divisors, whose sum is σ = 28902843972. Its totient is φ = 28902843970.

The previous prime is 28902843953. The next prime is 28902843989. The reversal of 28902843971 is 17934820982.

It is a balanced prime because it is at equal distance from previous prime (28902843953) and next prime (28902843989).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28902843971 is a prime.

It is a super-2 number, since 2×28902843971² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28902846971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14451421985 + 14451421986.

It is an arithmetic number, because the mean of its divisors is an integer number (14451421986).

Almost surely, 2^28902843971 is an apocalyptic number.

28902843971 is a deficient number, since it is larger than the sum of its proper divisors (1).

28902843971 is an equidigital number, since it uses as much as digits as its factorization.

28902843971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 28902843971 in words is "twenty-eight billion, nine hundred two million, eight hundred forty-three thousand, nine hundred seventy-one".