20768385310 has 16 divisors (see below), whose sum is σ = 37599183936. Its totient is φ = 8259334048.

The previous prime is 20768385289. The next prime is 20768385361. The reversal of 20768385310 is 1358386702.

It is a super-2 number, since 2×20768385310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6000694 + ... + 6004153.

It is an arithmetic number, because the mean of its divisors is an integer number (2349948996).

Almost surely, 2^20768385310 is an apocalyptic number.

20768385310 is a deficient number, since it is larger than the sum of its proper divisors (16830798626).

20768385310 is a wasteful number, since it uses less digits than its factorization.

20768385310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12005027.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20768385310 in words is "twenty billion, seven hundred sixty-eight million, three hundred eighty-five thousand, three hundred ten".