44647370993 has 4 divisors (see below), whose sum is σ = 46186935540. Its totient is φ = 43107806448.

The previous prime is 44647370983. The next prime is 44647371001. The reversal of 44647370993 is 39907374644.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21150466624 + 23496904369 = 145432^2 + 153287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44647370993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44647370983) 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, 769782230 + ... + 769782287.

It is an arithmetic number, because the mean of its divisors is an integer number (11546733885).

Almost surely, 2^44647370993 is an apocalyptic number.

It is an amenable number.

44647370993 is a deficient number, since it is larger than the sum of its proper divisors (1539564547).

44647370993 is a wasteful number, since it uses less digits than its factorization.

44647370993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539564546.

The product of its (nonzero) digits is 13716864, while the sum is 56.

The spelling of 44647370993 in words is "forty-four billion, six hundred forty-seven million, three hundred seventy thousand, nine hundred ninety-three".