40505551319 has 2 divisors, whose sum is σ = 40505551320. Its totient is φ = 40505551318.

The previous prime is 40505551301. The next prime is 40505551343. The reversal of 40505551319 is 91315550504.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40505551319 - 2¹² = 40505547223 is a prime.

It is a super-2 number, since 2×40505551319² (a number of 22 digits) contains 22 as substring.

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 (40505551349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20252775659 + 20252775660.

It is an arithmetic number, because the mean of its divisors is an integer number (20252775660).

Almost surely, 2^40505551319 is an apocalyptic number.

40505551319 is a deficient number, since it is larger than the sum of its proper divisors (1).

40505551319 is an equidigital number, since it uses as much as digits as its factorization.

40505551319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 38.

The spelling of 40505551319 in words is "forty billion, five hundred five million, five hundred fifty-one thousand, three hundred nineteen".