27731470746 has 16 divisors (see below), whose sum is σ = 63386218944. Its totient is φ = 7923277344.

The previous prime is 27731470721. The next prime is 27731470799. The reversal of 27731470746 is 64707413772.

It is a junction number, because it is equal to n+sod(n) for n = 27731470695 and 27731470704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330136515 + ... + 330136598.

It is an arithmetic number, because the mean of its divisors is an integer number (3961638684).

Almost surely, 2^27731470746 is an apocalyptic number.

27731470746 is an abundant number, since it is smaller than the sum of its proper divisors (35654748198).

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

27731470746 is a wasteful number, since it uses less digits than its factorization.

27731470746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660273125.

The product of its (nonzero) digits is 1382976, while the sum is 48.

The spelling of 27731470746 in words is "twenty-seven billion, seven hundred thirty-one million, four hundred seventy thousand, seven hundred forty-six".