63422034739981 has 2 divisors, whose sum is σ = 63422034739982. Its totient is φ = 63422034739980.

The previous prime is 63422034739957. The next prime is 63422034740023. The reversal of 63422034739981 is 18993743022436.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62777652865225 + 644381874756 = 7923235^2 + 802734^2 .

It is a cyclic number.

It is not a de Polignac number, because 63422034739981 - 2⁷ = 63422034739853 is a prime.

It is a super-2 number, since 2×63422034739981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63422034739081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31711017369990 + 31711017369991.

It is an arithmetic number, because the mean of its divisors is an integer number (31711017369991).

Almost surely, 2^{63422034739981} is an apocalyptic number.

It is an amenable number.

63422034739981 is a deficient number, since it is larger than the sum of its proper divisors (1).

63422034739981 is an equidigital number, since it uses as much as digits as its factorization.

63422034739981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 61.

The spelling of 63422034739981 in words is "sixty-three trillion, four hundred twenty-two billion, thirty-four million, seven hundred thirty-nine thousand, nine hundred eighty-one".