27153757720 has 16 divisors (see below), whose sum is σ = 61095954960. Its totient is φ = 10861503072.

The previous prime is 27153757699. The next prime is 27153757723. The reversal of 27153757720 is 2775735172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27153757723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339421932 + ... + 339422011.

It is an arithmetic number, because the mean of its divisors is an integer number (3818497185).

Almost surely, 2^27153757720 is an apocalyptic number.

27153757720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27153757720 is an abundant number, since it is smaller than the sum of its proper divisors (33942197240).

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

27153757720 is a wasteful number, since it uses less digits than its factorization.

27153757720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678843954 (or 678843950 counting only the distinct ones).

The product of its (nonzero) digits is 720300, while the sum is 46.

The spelling of 27153757720 in words is "twenty-seven billion, one hundred fifty-three million, seven hundred fifty-seven thousand, seven hundred twenty".