20765412735 has 36 divisors (see below), whose sum is σ = 34436685192. Its totient is φ = 10684659776.

The previous prime is 20765412709. The next prime is 20765412737. The reversal of 20765412735 is 53721456702.

It is not a de Polignac number, because 20765412735 - 2⁹ = 20765412223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20765412737) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16184404 + ... + 16185686.

Almost surely, 2^20765412735 is an apocalyptic number.

20765412735 is a deficient number, since it is larger than the sum of its proper divisors (13671272457).

20765412735 is an frugal number, since it uses more digits than its factorization.

20765412735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 20765412735 in words is "twenty billion, seven hundred sixty-five million, four hundred twelve thousand, seven hundred thirty-five".