28742888701 has 2 divisors, whose sum is σ = 28742888702. Its totient is φ = 28742888700.

The previous prime is 28742888693. The next prime is 28742888753. The reversal of 28742888701 is 10788824782.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21925909476 + 6816979225 = 148074^2 + 82565^2 .

It is a cyclic number.

It is not a de Polignac number, because 28742888701 - 2³ = 28742888693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28742088701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14371444350 + 14371444351.

It is an arithmetic number, because the mean of its divisors is an integer number (14371444351).

Almost surely, 2^28742888701 is an apocalyptic number.

It is an amenable number.

28742888701 is a deficient number, since it is larger than the sum of its proper divisors (1).

28742888701 is an equidigital number, since it uses as much as digits as its factorization.

28742888701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3211264, while the sum is 55.

The spelling of 28742888701 in words is "twenty-eight billion, seven hundred forty-two million, eight hundred eighty-eight thousand, seven hundred one".