27215211251272 has 16 divisors (see below), whose sum is σ = 55667477559600. Its totient is φ = 12370550568720.

The previous prime is 27215211251251. The next prime is 27215211251273.

It is a happy number.

27215211251272 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (27215211251273) 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, 154631882022 + ... + 154631882197.

It is an arithmetic number, because the mean of its divisors is an integer number (3479217347475).

Almost surely, 2^{27215211251272} is an apocalyptic number.

27215211251272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27215211251272 is an abundant number, since it is smaller than the sum of its proper divisors (28452266308328).

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

27215211251272 is a wasteful number, since it uses less digits than its factorization.

27215211251272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309263764236 (or 309263764232 counting only the distinct ones).

The product of its digits is 78400, while the sum is 40.

It can be divided in two parts, 2721521 and 1251272, that added together give a palindrome (3972793).

The spelling of 27215211251272 in words is "twenty-seven trillion, two hundred fifteen billion, two hundred eleven million, two hundred fifty-one thousand, two hundred seventy-two".