40364768251 has 2 divisors, whose sum is σ = 40364768252. Its totient is φ = 40364768250.

The previous prime is 40364768243. The next prime is 40364768281. The reversal of 40364768251 is 15286746304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40364768251 - 2³ = 40364768243 is a prime.

It is not a weakly prime, because it can be changed into another prime (40364768201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20182384125 + 20182384126.

It is an arithmetic number, because the mean of its divisors is an integer number (20182384126).

Almost surely, 2^40364768251 is an apocalyptic number.

40364768251 is a deficient number, since it is larger than the sum of its proper divisors (1).

40364768251 is an equidigital number, since it uses as much as digits as its factorization.

40364768251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 40364768251 in words is "forty billion, three hundred sixty-four million, seven hundred sixty-eight thousand, two hundred fifty-one".