27233790643540 has 48 divisors (see below), whose sum is σ = 61591976924688. Its totient is φ = 10055273969664.

The previous prime is 27233790643517. The next prime is 27233790643561. The reversal of 27233790643540 is 4534609733272.

It can be written as a sum of positive squares in 8 ways, for example, as 1409790523716 + 25824000119824 = 1187346^2 + 5081732^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8035074 + ... + 10910086.

It is an arithmetic number, because the mean of its divisors is an integer number (1283166185931).

Almost surely, 2^{27233790643540} is an apocalyptic number.

27233790643540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27233790643540 is an abundant number, since it is smaller than the sum of its proper divisors (34358186281148).

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

27233790643540 is a wasteful number, since it uses less digits than its factorization.

27233790643540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911468 (or 2911466 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 55.

The spelling of 27233790643540 in words is "twenty-seven trillion, two hundred thirty-three billion, seven hundred ninety million, six hundred forty-three thousand, five hundred forty".