27045142920 has 128 divisors (see below), whose sum is σ = 95453510400. Its totient is φ = 6787795968.

The previous prime is 27045142897. The next prime is 27045142991. The reversal of 27045142920 is 2924154072.

It is a super-2 number, since 2×27045142920² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 718164 + ... + 754883.

It is an arithmetic number, because the mean of its divisors is an integer number (745730550).

Almost surely, 2^27045142920 is an apocalyptic number.

27045142920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27045142920 is an abundant number, since it is smaller than the sum of its proper divisors (68408367480).

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

27045142920 is a wasteful number, since it uses less digits than its factorization.

27045142920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473084 (or 1473074 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 27045142920 its reverse (2924154072), we get a palindrome (29969296992).

The spelling of 27045142920 in words is "twenty-seven billion, forty-five million, one hundred forty-two thousand, nine hundred twenty".