20763541951 has 2 divisors, whose sum is σ = 20763541952. Its totient is φ = 20763541950.

The previous prime is 20763541927. The next prime is 20763542047. The reversal of 20763541951 is 15914536702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20763541951 - 2⁷ = 20763541823 is a prime.

It is a super-2 number, since 2×20763541951² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20763541898 and 20763541907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20763541751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10381770975 + 10381770976.

It is an arithmetic number, because the mean of its divisors is an integer number (10381770976).

Almost surely, 2^20763541951 is an apocalyptic number.

20763541951 is a deficient number, since it is larger than the sum of its proper divisors (1).

20763541951 is an equidigital number, since it uses as much as digits as its factorization.

20763541951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 20763541951 in words is "twenty billion, seven hundred sixty-three million, five hundred forty-one thousand, nine hundred fifty-one".