44580867381 has 12 divisors (see below), whose sum is σ = 66615089580. Its totient is φ = 28695730560.

The previous prime is 44580867329. The next prime is 44580867391. The reversal of 44580867381 is 18376808544.

It can be written as a sum of positive squares in 2 ways, for example, as 16031358225 + 28549509156 = 126615^2 + 168966^2 .

It is not a de Polignac number, because 44580867381 - 2³⁴ = 27400998197 is a prime.

It is a super-2 number, since 2×44580867381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44580867391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85403700 + ... + 85404221.

It is an arithmetic number, because the mean of its divisors is an integer number (5551257465).

Almost surely, 2^44580867381 is an apocalyptic number.

It is an amenable number.

44580867381 is a deficient number, since it is larger than the sum of its proper divisors (22034222199).

44580867381 is a wasteful number, since it uses less digits than its factorization.

44580867381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170807956 (or 170807953 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 44580867381 in words is "forty-four billion, five hundred eighty million, eight hundred sixty-seven thousand, three hundred eighty-one".