40539200251 has 16 divisors (see below), whose sum is σ = 45006192000. Its totient is φ = 36203368000.

The previous prime is 40539200243. The next prime is 40539200291. The reversal of 40539200251 is 15200293504.

It is a cyclic number.

It is not a de Polignac number, because 40539200251 - 2³ = 40539200243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40539200291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920175 + ... + 963223.

It is an arithmetic number, because the mean of its divisors is an integer number (2812887000).

Almost surely, 2^40539200251 is an apocalyptic number.

40539200251 is a deficient number, since it is larger than the sum of its proper divisors (4466991749).

40539200251 is a wasteful number, since it uses less digits than its factorization.

40539200251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44570.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 40539200251 its reverse (15200293504), we get a palindrome (55739493755).

The spelling of 40539200251 in words is "forty billion, five hundred thirty-nine million, two hundred thousand, two hundred fifty-one".