27070661772 has 72 divisors (see below), whose sum is σ = 85313609472. Its totient is φ = 7031340000.

The previous prime is 27070661747. The next prime is 27070661789. The reversal of 27070661772 is 27716607072.

27070661772 is a `hidden beast` number, since 27 + 0 + 7 + 0 + 6 + 617 + 7 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4880104 + ... + 4885647.

Almost surely, 2^27070661772 is an apocalyptic number.

27070661772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27070661772 is an abundant number, since it is smaller than the sum of its proper divisors (58242947700).

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

27070661772 is a wasteful number, since it uses less digits than its factorization.

27070661772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765779 (or 9765774 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The spelling of 27070661772 in words is "twenty-seven billion, seventy million, six hundred sixty-one thousand, seven hundred seventy-two".