40651434518 has 24 divisors (see below), whose sum is σ = 65460889368. Its totient is φ = 18867946752.

The previous prime is 40651434517. The next prime is 40651434589. The reversal of 40651434518 is 81543415604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40651434511) 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 in 11 ways as a sum of consecutive naturals, for example, 69005 + ... + 293367.

It is an arithmetic number, because the mean of its divisors is an integer number (2727537057).

Almost surely, 2^40651434518 is an apocalyptic number.

40651434518 is a deficient number, since it is larger than the sum of its proper divisors (24809454850).

40651434518 is a wasteful number, since it uses less digits than its factorization.

40651434518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224528 (or 224455 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 40651434518 in words is "forty billion, six hundred fifty-one million, four hundred thirty-four thousand, five hundred eighteen".