40634694547 has 2 divisors, whose sum is σ = 40634694548. Its totient is φ = 40634694546.

The previous prime is 40634694521. The next prime is 40634694553. The reversal of 40634694547 is 74549643604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40634694547 - 2¹⁹ = 40634170259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40634694494 and 40634694503.

It is not a weakly prime, because it can be changed into another prime (40634694517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20317347273 + 20317347274.

It is an arithmetic number, because the mean of its divisors is an integer number (20317347274).

Almost surely, 2^40634694547 is an apocalyptic number.

40634694547 is a deficient number, since it is larger than the sum of its proper divisors (1).

40634694547 is an equidigital number, since it uses as much as digits as its factorization.

40634694547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 40634694547 in words is "forty billion, six hundred thirty-four million, six hundred ninety-four thousand, five hundred forty-seven".