27479690740 has 12 divisors (see below), whose sum is σ = 57707350596. Its totient is φ = 10991876288.

The previous prime is 27479690731. The next prime is 27479690741. The reversal of 27479690740 is 4709697472.

It can be written as a sum of positive squares in 2 ways, for example, as 15081313636 + 12398377104 = 122806^2 + 111348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27479690741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686992249 + ... + 686992288.

It is an arithmetic number, because the mean of its divisors is an integer number (4808945883).

Almost surely, 2^27479690740 is an apocalyptic number.

27479690740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27479690740 is an abundant number, since it is smaller than the sum of its proper divisors (30227659856).

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

27479690740 is a wasteful number, since it uses less digits than its factorization.

27479690740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373984546 (or 1373984544 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 27479690740 in words is "twenty-seven billion, four hundred seventy-nine million, six hundred ninety thousand, seven hundred forty".