28077127537 has 2 divisors, whose sum is σ = 28077127538. Its totient is φ = 28077127536.

The previous prime is 28077127523. The next prime is 28077127601. The reversal of 28077127537 is 73572177082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16151613921 + 11925513616 = 127089^2 + 109204^2 .

It is a cyclic number.

It is not a de Polignac number, because 28077127537 - 2⁷ = 28077127409 is a prime.

It is not a weakly prime, because it can be changed into another prime (28077127237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14038563768 + 14038563769.

It is an arithmetic number, because the mean of its divisors is an integer number (14038563769).

Almost surely, 2^28077127537 is an apocalyptic number.

It is an amenable number.

28077127537 is a deficient number, since it is larger than the sum of its proper divisors (1).

28077127537 is an equidigital number, since it uses as much as digits as its factorization.

28077127537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152480, while the sum is 49.

The spelling of 28077127537 in words is "twenty-eight billion, seventy-seven million, one hundred twenty-seven thousand, five hundred thirty-seven".