40518542398 has 8 divisors (see below), whose sum is σ = 61610386608. Its totient is φ = 19981746864.

The previous prime is 40518542353. The next prime is 40518542419. The reversal of 40518542398 is 89324581504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138761986 + ... + 138762277.

It is an arithmetic number, because the mean of its divisors is an integer number (7701298326).

Almost surely, 2^40518542398 is an apocalyptic number.

40518542398 is a deficient number, since it is larger than the sum of its proper divisors (21091844210).

40518542398 is a wasteful number, since it uses less digits than its factorization.

40518542398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277524338.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 40518542398 in words is "forty billion, five hundred eighteen million, five hundred forty-two thousand, three hundred ninety-eight".