44151890481 has 32 divisors (see below), whose sum is σ = 65749864320. Its totient is φ = 29282153472.

The previous prime is 44151890479. The next prime is 44151890633. The reversal of 44151890481 is 18409815144.

44151890481 is a `hidden beast` number, since 4 + 4 + 1 + 518 + 90 + 48 + 1 = 666.

It is not a de Polignac number, because 44151890481 - 2¹ = 44151890479 is a prime.

It is a super-2 number, since 2×44151890481² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44151891481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4217005 + ... + 4227461.

It is an arithmetic number, because the mean of its divisors is an integer number (2054683260).

Almost surely, 2^44151890481 is an apocalyptic number.

It is an amenable number.

44151890481 is a deficient number, since it is larger than the sum of its proper divisors (21597973839).

44151890481 is a wasteful number, since it uses less digits than its factorization.

44151890481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11262 (or 11256 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 44151890481 in words is "forty-four billion, one hundred fifty-one million, eight hundred ninety thousand, four hundred eighty-one".