40195554523 has 2 divisors, whose sum is σ = 40195554524. Its totient is φ = 40195554522.

The previous prime is 40195554479. The next prime is 40195554527. The reversal of 40195554523 is 32545559104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40195554523 - 2⁹ = 40195554011 is a prime.

It is a super-2 number, since 2×40195554523² (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 40195554523.

It is not a weakly prime, because it can be changed into another prime (40195554527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20097777261 + 20097777262.

It is an arithmetic number, because the mean of its divisors is an integer number (20097777262).

Almost surely, 2^40195554523 is an apocalyptic number.

40195554523 is a deficient number, since it is larger than the sum of its proper divisors (1).

40195554523 is an equidigital number, since it uses as much as digits as its factorization.

40195554523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 40195554523 in words is "forty billion, one hundred ninety-five million, five hundred fifty-four thousand, five hundred twenty-three".