28894152227077 has 4 divisors (see below), whose sum is σ = 28894210449120. Its totient is φ = 28894094005036.

The previous prime is 28894152227027. The next prime is 28894152227089. The reversal of 28894152227077 is 77072225149882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28894152227077 - 2¹⁵ = 28894152194309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28894152227027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28360153 + ... + 29361310.

It is an arithmetic number, because the mean of its divisors is an integer number (7223552612280).

Almost surely, 2^{28894152227077} is an apocalyptic number.

It is an amenable number.

28894152227077 is a deficient number, since it is larger than the sum of its proper divisors (58222043).

28894152227077 is an equidigital number, since it uses as much as digits as its factorization.

28894152227077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58222042.

The product of its (nonzero) digits is 63221760, while the sum is 64.

The spelling of 28894152227077 in words is "twenty-eight trillion, eight hundred ninety-four billion, one hundred fifty-two million, two hundred twenty-seven thousand, seventy-seven".