45161863728 has 40 divisors (see below), whose sum is σ = 117870924528. Its totient is φ = 14898757632.

The previous prime is 45161863717. The next prime is 45161863753. The reversal of 45161863728 is 82736816154.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4845201 + ... + 4854512.

Almost surely, 2^45161863728 is an apocalyptic number.

45161863728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

45161863728 is an abundant number, since it is smaller than the sum of its proper divisors (72709060800).

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

45161863728 is a wasteful number, since it uses less digits than its factorization.

45161863728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699821 (or 9699815 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The spelling of 45161863728 in words is "forty-five billion, one hundred sixty-one million, eight hundred sixty-three thousand, seven hundred twenty-eight".