28000055030057 has 16 divisors (see below), whose sum is σ = 31874146558848. Its totient is φ = 24347441479680.

The previous prime is 28000055030053. The next prime is 28000055030107. The reversal of 28000055030057 is 75003055000082.

It is not a de Polignac number, because 28000055030057 - 2² = 28000055030053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28000055029999 and 28000055030026.

It is not an unprimeable number, because it can be changed into a prime (28000055030053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13723433 + ... + 15631145.

It is an arithmetic number, because the mean of its divisors is an integer number (1992134159928).

Almost surely, 2^{28000055030057} is an apocalyptic number.

It is an amenable number.

28000055030057 is a deficient number, since it is larger than the sum of its proper divisors (3874091528791).

28000055030057 is a wasteful number, since it uses less digits than its factorization.

28000055030057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965760.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 28000055030057 in words is "twenty-eight trillion, fifty-five million, thirty thousand, fifty-seven".