28996426937 has 2 divisors, whose sum is σ = 28996426938. Its totient is φ = 28996426936.

The previous prime is 28996426913. The next prime is 28996426957. The reversal of 28996426937 is 73962469982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27581237776 + 1415189161 = 166076^2 + 37619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28996426937 is a prime.

It is a super-2 number, since 2×28996426937² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28996426957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14498213468 + 14498213469.

It is an arithmetic number, because the mean of its divisors is an integer number (14498213469).

Almost surely, 2^28996426937 is an apocalyptic number.

It is an amenable number.

28996426937 is a deficient number, since it is larger than the sum of its proper divisors (1).

28996426937 is an equidigital number, since it uses as much as digits as its factorization.

28996426937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70543872, while the sum is 65.

The spelling of 28996426937 in words is "twenty-eight billion, nine hundred ninety-six million, four hundred twenty-six thousand, nine hundred thirty-seven".