44691519649 has 4 divisors (see below), whose sum is σ = 51076022464. Its totient is φ = 38307016836.

The previous prime is 44691519641. The next prime is 44691519661. The reversal of 44691519649 is 94691519644.

44691519649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44691519649 - 2³ = 44691519641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44691519593 and 44691519602.

It is not an unprimeable number, because it can be changed into a prime (44691519641) 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, 3192251397 + ... + 3192251410.

It is an arithmetic number, because the mean of its divisors is an integer number (12769005616).

Almost surely, 2^44691519649 is an apocalyptic number.

It is an amenable number.

44691519649 is a deficient number, since it is larger than the sum of its proper divisors (6384502815).

44691519649 is an equidigital number, since it uses as much as digits as its factorization.

44691519649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384502814.

The product of its digits is 8398080, while the sum is 58.

The spelling of 44691519649 in words is "forty-four billion, six hundred ninety-one million, five hundred nineteen thousand, six hundred forty-nine".