20761283763 has 12 divisors (see below), whose sum is σ = 32714750328. Its totient is φ = 12582596160.

The previous prime is 20761283747. The next prime is 20761283771. The reversal of 20761283763 is 36738216702.

20761283763 is a `hidden beast` number, since 20 + 7 + 612 + 8 + 3 + 7 + 6 + 3 = 666.

It is not a de Polignac number, because 20761283763 - 2⁴ = 20761283747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20761283863) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 104854870 + ... + 104855067.

It is an arithmetic number, because the mean of its divisors is an integer number (2726229194).

Almost surely, 2^20761283763 is an apocalyptic number.

20761283763 is a deficient number, since it is larger than the sum of its proper divisors (11953466565).

20761283763 is a wasteful number, since it uses less digits than its factorization.

20761283763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209709954 (or 209709951 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 20761283763 in words is "twenty billion, seven hundred sixty-one million, two hundred eighty-three thousand, seven hundred sixty-three".