28155542605190 has 96 divisors (see below), whose sum is σ = 69260947336224. Its totient is φ = 8100695554560.

The previous prime is 28155542605067. The next prime is 28155542605259. The reversal of 28155542605190 is 9150624555182.

It is a super-2 number, since 2×28155542605190² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200840039 + ... + 200980178.

It is an arithmetic number, because the mean of its divisors is an integer number (721468201419).

Almost surely, 2^{28155542605190} is an apocalyptic number.

28155542605190 is an abundant number, since it is smaller than the sum of its proper divisors (41105404731034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28155542605190 is a wasteful number, since it uses less digits than its factorization.

28155542605190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401820262 (or 401820255 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 53.

The spelling of 28155542605190 in words is "twenty-eight trillion, one hundred fifty-five billion, five hundred forty-two million, six hundred five thousand, one hundred ninety".