63763000981 has 2 divisors, whose sum is σ = 63763000982. Its totient is φ = 63763000980.

The previous prime is 63763000963. The next prime is 63763000997. The reversal of 63763000981 is 18900036736.

63763000981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62495000100 + 1268000881 = 249990^2 + 35609^2 .

It is a cyclic number.

It is not a de Polignac number, because 63763000981 - 2¹¹ = 63762998933 is a prime.

It is a super-2 number, since 2×63763000981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63763000181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31881500490 + 31881500491.

It is an arithmetic number, because the mean of its divisors is an integer number (31881500491).

Almost surely, 2^63763000981 is an apocalyptic number.

It is an amenable number.

63763000981 is a deficient number, since it is larger than the sum of its proper divisors (1).

63763000981 is an equidigital number, since it uses as much as digits as its factorization.

63763000981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 63763000981 in words is "sixty-three billion, seven hundred sixty-three million, nine hundred eighty-one", and thus it is an aban number.