44948557487 has 4 divisors (see below), whose sum is σ = 44957940240. Its totient is φ = 44939174736.

The previous prime is 44948557441. The next prime is 44948557541. The reversal of 44948557487 is 78475584944.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44948557487 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 (44948547487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4684187 + ... + 4693772.

It is an arithmetic number, because the mean of its divisors is an integer number (11239485060).

Almost surely, 2^44948557487 is an apocalyptic number.

44948557487 is a deficient number, since it is larger than the sum of its proper divisors (9382753).

44948557487 is an equidigital number, since it uses as much as digits as its factorization.

44948557487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9382752.

The product of its digits is 180633600, while the sum is 65.

The spelling of 44948557487 in words is "forty-four billion, nine hundred forty-eight million, five hundred fifty-seven thousand, four hundred eighty-seven".