27772386061 has 12 divisors (see below), whose sum is σ = 32309542560. Its totient is φ = 23802773400.

The previous prime is 27772386053. The next prime is 27772386067. The reversal of 27772386061 is 16068327772.

It is a happy number.

It is not a de Polignac number, because 27772386061 - 2³ = 27772386053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27772385996 and 27772386014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27772386067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 798880 + ... + 832918.

It is an arithmetic number, because the mean of its divisors is an integer number (2692461880).

Almost surely, 2^27772386061 is an apocalyptic number.

It is an amenable number.

27772386061 is a deficient number, since it is larger than the sum of its proper divisors (4537156499).

27772386061 is a wasteful number, since it uses less digits than its factorization.

27772386061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50704 (or 50697 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 27772386061 in words is "twenty-seven billion, seven hundred seventy-two million, three hundred eighty-six thousand, sixty-one".