27642112815450 has 48 divisors (see below), whose sum is σ = 78345645468480. Its totient is φ = 6318197214720.

The previous prime is 27642112815419. The next prime is 27642112815469. The reversal of 27642112815450 is 5451821124672.

It is a self number, because there is not a number n which added to its sum of digits gives 27642112815450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13162909815 + ... + 13162911914.

It is an arithmetic number, because the mean of its divisors is an integer number (1632200947260).

Almost surely, 2^{27642112815450} is an apocalyptic number.

27642112815450 is an abundant number, since it is smaller than the sum of its proper divisors (50703532653030).

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

27642112815450 is a wasteful number, since it uses less digits than its factorization.

27642112815450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26325821751 (or 26325821746 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 27642112815450 in words is "twenty-seven trillion, six hundred forty-two billion, one hundred twelve million, eight hundred fifteen thousand, four hundred fifty".