40545244001 has 4 divisors (see below), whose sum is σ = 42930258372. Its totient is φ = 38160229632.

The previous prime is 40545243989. The next prime is 40545244021. The reversal of 40545244001 is 10044254504.

40545244001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31046792401 + 9498451600 = 176201^2 + 97460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40545244001 is a prime.

It is a super-2 number, since 2×40545244001² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40545244021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192507160 + ... + 1192507193.

It is an arithmetic number, because the mean of its divisors is an integer number (10732564593).

Almost surely, 2^40545244001 is an apocalyptic number.

It is an amenable number.

40545244001 is a deficient number, since it is larger than the sum of its proper divisors (2385014371).

40545244001 is a wasteful number, since it uses less digits than its factorization.

40545244001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385014370.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 40545244001 its reverse (10044254504), we get a palindrome (50589498505).

The spelling of 40545244001 in words is "forty billion, five hundred forty-five million, two hundred forty-four thousand, one".