40851958237 has 2 divisors, whose sum is σ = 40851958238. Its totient is φ = 40851958236.

The previous prime is 40851958229. The next prime is 40851958241. The reversal of 40851958237 is 73285915804.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39059197956 + 1792760281 = 197634^2 + 42341^2 .

It is a cyclic number.

It is not a de Polignac number, because 40851958237 - 2³ = 40851958229 is a prime.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20425979118 + 20425979119.

It is an arithmetic number, because the mean of its divisors is an integer number (20425979119).

Almost surely, 2^40851958237 is an apocalyptic number.

It is an amenable number.

40851958237 is a deficient number, since it is larger than the sum of its proper divisors (1).

40851958237 is an equidigital number, since it uses as much as digits as its factorization.

40851958237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 40851958237 in words is "forty billion, eight hundred fifty-one million, nine hundred fifty-eight thousand, two hundred thirty-seven".