44135340431 has 16 divisors (see below), whose sum is σ = 55210924608. Its totient is φ = 34347801600.

The previous prime is 44135340427. The next prime is 44135340433. The reversal of 44135340431 is 13404353144.

It is not a de Polignac number, because 44135340431 - 2² = 44135340427 is a prime.

It is a super-2 number, since 2×44135340431² (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 (44135340433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3969890 + ... + 3980991.

It is an arithmetic number, because the mean of its divisors is an integer number (3450682788).

Almost surely, 2^44135340431 is an apocalyptic number.

44135340431 is a deficient number, since it is larger than the sum of its proper divisors (11075584177).

44135340431 is a wasteful number, since it uses less digits than its factorization.

44135340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950962.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 44135340431 its reverse (13404353144), we get a palindrome (57539693575).

The spelling of 44135340431 in words is "forty-four billion, one hundred thirty-five million, three hundred forty thousand, four hundred thirty-one".