20773603774 has 32 divisors (see below), whose sum is σ = 38878995456. Its totient is φ = 8087433120.

The previous prime is 20773603769. The next prime is 20773603801. The reversal of 20773603774 is 47730637702.

It is a super-2 number, since 2×20773603774² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153532 + ... + 255184.

It is an arithmetic number, because the mean of its divisors is an integer number (1214968608).

Almost surely, 2^20773603774 is an apocalyptic number.

20773603774 is a deficient number, since it is larger than the sum of its proper divisors (18105391682).

20773603774 is a wasteful number, since it uses less digits than its factorization.

20773603774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103000.

The product of its (nonzero) digits is 1037232, while the sum is 46.

The spelling of 20773603774 in words is "twenty billion, seven hundred seventy-three million, six hundred three thousand, seven hundred seventy-four".