40778152319 has 2 divisors, whose sum is σ = 40778152320. Its totient is φ = 40778152318.

The previous prime is 40778152223. The next prime is 40778152357. The reversal of 40778152319 is 91325187704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40778152319 - 2²⁰ = 40777103743 is a prime.

It is a super-2 number, since 2×40778152319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40778152369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20389076159 + 20389076160.

It is an arithmetic number, because the mean of its divisors is an integer number (20389076160).

Almost surely, 2^40778152319 is an apocalyptic number.

40778152319 is a deficient number, since it is larger than the sum of its proper divisors (1).

40778152319 is an equidigital number, since it uses as much as digits as its factorization.

40778152319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 40778152319 in words is "forty billion, seven hundred seventy-eight million, one hundred fifty-two thousand, three hundred nineteen".