40778152223 has 2 divisors, whose sum is σ = 40778152224. Its totient is φ = 40778152222.

The previous prime is 40778152213. The next prime is 40778152319. The reversal of 40778152223 is 32225187704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40778152223 - 2⁶ = 40778152159 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40778152213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20389076111 + 20389076112.

It is an arithmetic number, because the mean of its divisors is an integer number (20389076112).

Almost surely, 2^40778152223 is an apocalyptic number.

40778152223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40778152223 is an equidigital number, since it uses as much as digits as its factorization.

40778152223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 40778152223 in words is "forty billion, seven hundred seventy-eight million, one hundred fifty-two thousand, two hundred twenty-three".