40172736041544 has 32 divisors (see below), whose sum is σ = 102078263715840. Its totient is φ = 13171388865600.

The previous prime is 40172736041509. The next prime is 40172736041563. The reversal of 40172736041544 is 44514063727104.

It is a super-2 number, since 2×40172736041544² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40172736041493 and 40172736041502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13720195272 + ... + 13720198199.

It is an arithmetic number, because the mean of its divisors is an integer number (3189945741120).

Almost surely, 2^{40172736041544} is an apocalyptic number.

It is an amenable number.

40172736041544 is an abundant number, since it is smaller than the sum of its proper divisors (61905527674296).

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

40172736041544 is a wasteful number, since it uses less digits than its factorization.

40172736041544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27440393541 (or 27440393537 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 48.

Adding to 40172736041544 its reverse (44514063727104), we get a palindrome (84686799768648).

The spelling of 40172736041544 in words is "forty trillion, one hundred seventy-two billion, seven hundred thirty-six million, forty-one thousand, five hundred forty-four".