44847129645 has 48 divisors (see below), whose sum is σ = 79893873072. Its totient is φ = 23255147520.

The previous prime is 44847129611. The next prime is 44847129689. The reversal of 44847129645 is 54692174844.

44847129645 is a `hidden beast` number, since 4 + 48 + 471 + 2 + 96 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 249292521 + 44597837124 = 15789^2 + 211182^2 .

It is not a de Polignac number, because 44847129645 - 2¹¹ = 44847127597 is a prime.

It is a super-3 number, since 3×44847129645³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 44847129591 and 44847129600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2476825 + ... + 2494865.

It is an arithmetic number, because the mean of its divisors is an integer number (1664455689).

Almost surely, 2^44847129645 is an apocalyptic number.

44847129645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44847129645 is a deficient number, since it is larger than the sum of its proper divisors (35046743427).

44847129645 is a wasteful number, since it uses less digits than its factorization.

44847129645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19582 (or 19579 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 44847129645 in words is "forty-four billion, eight hundred forty-seven million, one hundred twenty-nine thousand, six hundred forty-five".