30288607028661 has 8 divisors (see below), whose sum is σ = 40386598696224. Its totient is φ = 20191510023440.

The previous prime is 30288607028573. The next prime is 30288607028717. The reversal of 30288607028661 is 16682070688203.

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 30288607028661 - 2⁹ = 30288607028149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30288607028461) 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, 223586586 + ... + 223722011.

It is an arithmetic number, because the mean of its divisors is an integer number (5048324837028).

Almost surely, 2^{30288607028661} is an apocalyptic number.

It is an amenable number.

30288607028661 is a deficient number, since it is larger than the sum of its proper divisors (10097991667563).

30288607028661 is a wasteful number, since it uses less digits than its factorization.

30288607028661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447331171.

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 30288607028661 in words is "thirty trillion, two hundred eighty-eight billion, six hundred seven million, twenty-eight thousand, six hundred sixty-one".