27742577020 has 24 divisors (see below), whose sum is σ = 59680374768. Its totient is φ = 10826371200.

The previous prime is 27742576999. The next prime is 27742577021. The reversal of 27742577020 is 2077524772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27742577021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16915386 + ... + 16917025.

It is an arithmetic number, because the mean of its divisors is an integer number (2486682282).

Almost surely, 2^27742577020 is an apocalyptic number.

27742577020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27742577020 is an abundant number, since it is smaller than the sum of its proper divisors (31937797748).

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

27742577020 is a wasteful number, since it uses less digits than its factorization.

27742577020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33832461 (or 33832459 counting only the distinct ones).

The product of its (nonzero) digits is 384160, while the sum is 43.

The spelling of 27742577020 in words is "twenty-seven billion, seven hundred forty-two million, five hundred seventy-seven thousand, twenty".