45031271004 has 144 divisors (see below), whose sum is σ = 122694596640. Its totient is φ = 14281344000.

The previous prime is 45031270997. The next prime is 45031271009. The reversal of 45031271004 is 40017213054.

It is a super-3 number, since 3×45031271004³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45031271009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11253004 + ... + 11257004.

It is an arithmetic number, because the mean of its divisors is an integer number (852045810).

Almost surely, 2^45031271004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45031271004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61347298320).

45031271004 is an abundant number, since it is smaller than the sum of its proper divisors (77663325636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45031271004 is a wasteful number, since it uses less digits than its factorization.

45031271004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257 (or 4226 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 45031271004 its reverse (40017213054), we get a palindrome (85048484058).

The spelling of 45031271004 in words is "forty-five billion, thirty-one million, two hundred seventy-one thousand, four".