27489790500 has 96 divisors (see below), whose sum is σ = 84759187968. Its totient is φ = 6899392000.

The previous prime is 27489790477. The next prime is 27489790583. The reversal of 27489790500 is 509798472.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 513516 + ... + 564515.

It is an arithmetic number, because the mean of its divisors is an integer number (882908208).

Almost surely, 2^27489790500 is an apocalyptic number.

27489790500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27489790500 is an abundant number, since it is smaller than the sum of its proper divisors (57269397468).

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

27489790500 is a wasteful number, since it uses less digits than its factorization.

27489790500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078070 (or 1078058 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 27489790500 in words is "twenty-seven billion, four hundred eighty-nine million, seven hundred ninety thousand, five hundred".