28054223155 has 32 divisors (see below), whose sum is σ = 39385128960. Its totient is φ = 18783720960.

The previous prime is 28054223147. The next prime is 28054223177. The reversal of 28054223155 is 55132245082.

It is not a de Polignac number, because 28054223155 - 2³ = 28054223147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 689211 + ... + 728779.

It is an arithmetic number, because the mean of its divisors is an integer number (1230785280).

Almost surely, 2^28054223155 is an apocalyptic number.

28054223155 is a deficient number, since it is larger than the sum of its proper divisors (11330905805).

28054223155 is a wasteful number, since it uses less digits than its factorization.

28054223155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40059.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 28054223155 in words is "twenty-eight billion, fifty-four million, two hundred twenty-three thousand, one hundred fifty-five".