28128762611 has 2 divisors, whose sum is σ = 28128762612. Its totient is φ = 28128762610.

The previous prime is 28128762587. The next prime is 28128762619. The reversal of 28128762611 is 11626782182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28128762611 - 2³⁴ = 10948893427 is a prime.

It is not a weakly prime, because it can be changed into another prime (28128762619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14064381305 + 14064381306.

It is an arithmetic number, because the mean of its divisors is an integer number (14064381306).

Almost surely, 2^28128762611 is an apocalyptic number.

28128762611 is a deficient number, since it is larger than the sum of its proper divisors (1).

28128762611 is an equidigital number, since it uses as much as digits as its factorization.

28128762611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The spelling of 28128762611 in words is "twenty-eight billion, one hundred twenty-eight million, seven hundred sixty-two thousand, six hundred eleven".