40130040469 has 2 divisors, whose sum is σ = 40130040470. Its totient is φ = 40130040468.

The previous prime is 40130040439. The next prime is 40130040479. The reversal of 40130040469 is 96404003104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26079020100 + 14051020369 = 161490^2 + 118537^2 .

It is a cyclic number.

It is not a de Polignac number, because 40130040469 - 2⁵ = 40130040437 is a prime.

It is a super-2 number, since 2×40130040469² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40130040469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40130040439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20065020234 + 20065020235.

It is an arithmetic number, because the mean of its divisors is an integer number (20065020235).

Almost surely, 2^40130040469 is an apocalyptic number.

It is an amenable number.

40130040469 is a deficient number, since it is larger than the sum of its proper divisors (1).

40130040469 is an equidigital number, since it uses as much as digits as its factorization.

40130040469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 40130040469 in words is "forty billion, one hundred thirty million, forty thousand, four hundred sixty-nine".