27997204694 has 4 divisors (see below), whose sum is σ = 41995807044. Its totient is φ = 13998602346.

The previous prime is 27997204693. The next prime is 27997204699. The reversal of 27997204694 is 49640279972.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27997204693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6999301172 + ... + 6999301175.

It is an arithmetic number, because the mean of its divisors is an integer number (10498951761).

Almost surely, 2^27997204694 is an apocalyptic number.

27997204694 is a deficient number, since it is larger than the sum of its proper divisors (13998602350).

27997204694 is a wasteful number, since it uses less digits than its factorization.

27997204694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13998602349.

The product of its (nonzero) digits is 13716864, while the sum is 59.

The spelling of 27997204694 in words is "twenty-seven billion, nine hundred ninety-seven million, two hundred four thousand, six hundred ninety-four".