27007155251 has 16 divisors (see below), whose sum is σ = 27648583200. Its totient is φ = 26370938880.

The previous prime is 27007155191. The next prime is 27007155319. The reversal of 27007155251 is 15255170072.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27007155251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27007155751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12780371 + ... + 12782483.

It is an arithmetic number, because the mean of its divisors is an integer number (1728036450).

Almost surely, 2^27007155251 is an apocalyptic number.

27007155251 is a deficient number, since it is larger than the sum of its proper divisors (641427949).

27007155251 is a wasteful number, since it uses less digits than its factorization.

27007155251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206.

The product of its (nonzero) digits is 24500, while the sum is 35.

The spelling of 27007155251 in words is "twenty-seven billion, seven million, one hundred fifty-five thousand, two hundred fifty-one".