140448617818 has 8 divisors (see below), whose sum is σ = 215572297248. Its totient is φ = 68591185404.

The previous prime is 140448617807. The next prime is 140448617833. The reversal of 140448617818 is 818716844041.

140448617818 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×140448617818² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816561646 + ... + 816561817.

It is an arithmetic number, because the mean of its divisors is an integer number (26946537156).

Almost surely, 2^140448617818 is an apocalyptic number.

140448617818 is a deficient number, since it is larger than the sum of its proper divisors (75123679430).

140448617818 is a wasteful number, since it uses less digits than its factorization.

140448617818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633123508.

The product of its (nonzero) digits is 1376256, while the sum is 52.

The spelling of 140448617818 in words is "one hundred forty billion, four hundred forty-eight million, six hundred seventeen thousand, eight hundred eighteen".