45981640429 has 2 divisors, whose sum is σ = 45981640430. Its totient is φ = 45981640428.

The previous prime is 45981640427. The next prime is 45981640499. The reversal of 45981640429 is 92404618954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45825964900 + 155675529 = 214070^2 + 12477^2 .

It is a cyclic number.

It is not a de Polignac number, because 45981640429 - 2¹ = 45981640427 is a prime.

It is a super-2 number, since 2×45981640429² (a number of 22 digits) contains 22 as substring.

Together with 45981640427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45981640421) 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, 22990820214 + 22990820215.

It is an arithmetic number, because the mean of its divisors is an integer number (22990820215).

Almost surely, 2^45981640429 is an apocalyptic number.

It is an amenable number.

45981640429 is a deficient number, since it is larger than the sum of its proper divisors (1).

45981640429 is an equidigital number, since it uses as much as digits as its factorization.

45981640429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 45981640429 in words is "forty-five billion, nine hundred eighty-one million, six hundred forty thousand, four hundred twenty-nine".