44912477887 has 8 divisors (see below), whose sum is σ = 45479139120. Its totient is φ = 44347195200.

The previous prime is 44912477851. The next prime is 44912477891. The reversal of 44912477887 is 78877421944.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44912477887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44912477807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278989 + ... + 409462.

It is an arithmetic number, because the mean of its divisors is an integer number (5684892390).

Almost surely, 2^44912477887 is an apocalyptic number.

44912477887 is a deficient number, since it is larger than the sum of its proper divisors (566661233).

44912477887 is an equidigital number, since it uses as much as digits as its factorization.

44912477887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689273.

The product of its digits is 25288704, while the sum is 61.

The spelling of 44912477887 in words is "forty-four billion, nine hundred twelve million, four hundred seventy-seven thousand, eight hundred eighty-seven".