28077190238894 has 8 divisors (see below), whose sum is σ = 42116451441888. Its totient is φ = 14038373091600.

The previous prime is 28077190238891. The next prime is 28077190238899. The reversal of 28077190238894 is 49883209177082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28077190238894² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28077190238891) 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, 110855807 + ... + 111108794.

It is an arithmetic number, because the mean of its divisors is an integer number (5264556430236).

Almost surely, 2^{28077190238894} is an apocalyptic number.

28077190238894 is a deficient number, since it is larger than the sum of its proper divisors (14039261202994).

28077190238894 is a wasteful number, since it uses less digits than its factorization.

28077190238894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222027850.

The product of its (nonzero) digits is 97542144, while the sum is 68.

The spelling of 28077190238894 in words is "twenty-eight trillion, seventy-seven billion, one hundred ninety million, two hundred thirty-eight thousand, eight hundred ninety-four".