27475019616 has 96 divisors (see below), whose sum is σ = 82819497600. Its totient is φ = 7887559680.

The previous prime is 27475019581. The next prime is 27475019623. The reversal of 27475019616 is 61691057472.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 664621 + ... + 704748.

It is an arithmetic number, because the mean of its divisors is an integer number (862703100).

Almost surely, 2^27475019616 is an apocalyptic number.

It is an amenable number.

27475019616 is an abundant number, since it is smaller than the sum of its proper divisors (55344477984).

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

27475019616 is a wasteful number, since it uses less digits than its factorization.

27475019616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369412 (or 1369404 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 27475019616 in words is "twenty-seven billion, four hundred seventy-five million, nineteen thousand, six hundred sixteen".