27494686674 has 192 divisors, whose sum is σ = 76862193408. Its totient is φ = 6909235200.

The previous prime is 27494686621. The next prime is 27494686691. The reversal of 27494686674 is 47668649472.

27494686674 is a `hidden beast` number, since 2 + 7 + 49 + 468 + 66 + 74 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2883034 + ... + 2892554.

It is an arithmetic number, because the mean of its divisors is an integer number (400323924).

Almost surely, 2^27494686674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27494686674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38431096704).

27494686674 is an abundant number, since it is smaller than the sum of its proper divisors (49367506734).

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

27494686674 is a wasteful number, since it uses less digits than its factorization.

27494686674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9633 (or 9630 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 27494686674 in words is "twenty-seven billion, four hundred ninety-four million, six hundred eighty-six thousand, six hundred seventy-four".