45068621988 has 48 divisors (see below), whose sum is σ = 113343196736. Its totient is φ = 13855777920.

The previous prime is 45068621981. The next prime is 45068621989. The reversal of 45068621988 is 88912686054.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (45068621981) 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 15 ways as a sum of consecutive naturals, for example, 70143 + ... + 308313.

Almost surely, 2^45068621988 is an apocalyptic number.

It is an amenable number.

45068621988 is an abundant number, since it is smaller than the sum of its proper divisors (68274574748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45068621988 is a wasteful number, since it uses less digits than its factorization.

45068621988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239404 (or 239402 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 45068621988 in words is "forty-five billion, sixty-eight million, six hundred twenty-one thousand, nine hundred eighty-eight".