44975715987 has 4 divisors (see below), whose sum is σ = 59967621320. Its totient is φ = 29983810656.

The previous prime is 44975715979. The next prime is 44975715991. The reversal of 44975715987 is 78951757944.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44975715987 - 2³ = 44975715979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44975715997) 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 in 3 ways as a sum of consecutive naturals, for example, 7495952662 + ... + 7495952667.

It is an arithmetic number, because the mean of its divisors is an integer number (14991905330).

Almost surely, 2^44975715987 is an apocalyptic number.

44975715987 is a deficient number, since it is larger than the sum of its proper divisors (14991905333).

44975715987 is a wasteful number, since it uses less digits than its factorization.

44975715987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14991905332.

The product of its digits is 88905600, while the sum is 66.

The spelling of 44975715987 in words is "forty-four billion, nine hundred seventy-five million, seven hundred fifteen thousand, nine hundred eighty-seven".