20770195827 has 32 divisors (see below), whose sum is σ = 28747823104. Its totient is φ = 13338833760.

The previous prime is 20770195777. The next prime is 20770195913. The reversal of 20770195827 is 72859107702.

It is a happy number.

It is not a de Polignac number, because 20770195827 - 2¹⁵ = 20770163059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20770195627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27437133 + ... + 27437889.

It is an arithmetic number, because the mean of its divisors is an integer number (898369472).

Almost surely, 2^20770195827 is an apocalyptic number.

20770195827 is a deficient number, since it is larger than the sum of its proper divisors (7977627277).

20770195827 is an frugal number, since it uses more digits than its factorization.

20770195827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 48.

The spelling of 20770195827 in words is "twenty billion, seven hundred seventy million, one hundred ninety-five thousand, eight hundred twenty-seven".