28357242287061 has 8 divisors (see below), whose sum is σ = 38342186754624. Its totient is φ = 18638563005440.

The previous prime is 28357242287029. The next prime is 28357242287081. The reversal of 28357242287061 is 16078224275382.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28357242287061 - 2⁵ = 28357242287029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28357242286992 and 28357242287010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28357242287081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66566296236 + ... + 66566296661.

It is an arithmetic number, because the mean of its divisors is an integer number (4792773344328).

Almost surely, 2^{28357242287061} is an apocalyptic number.

It is an amenable number.

28357242287061 is a deficient number, since it is larger than the sum of its proper divisors (9984944467563).

28357242287061 is a wasteful number, since it uses less digits than its factorization.

28357242287061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133132592971.

The product of its (nonzero) digits is 18063360, while the sum is 57.

The spelling of 28357242287061 in words is "twenty-eight trillion, three hundred fifty-seven billion, two hundred forty-two million, two hundred eighty-seven thousand, sixty-one".