140778259717 has 8 divisors (see below), whose sum is σ = 149158800000. Its totient is φ = 132408771264.

The previous prime is 140778259693. The next prime is 140778259733. The reversal of 140778259717 is 717952877041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140778259717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140778259757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2736717 + ... + 2787682.

It is an arithmetic number, because the mean of its divisors is an integer number (18644850000).

Almost surely, 2^140778259717 is an apocalyptic number.

140778259717 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

140778259717 is a deficient number, since it is larger than the sum of its proper divisors (8380540283).

140778259717 is a wasteful number, since it uses less digits than its factorization.

140778259717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525915.

The product of its (nonzero) digits is 6914880, while the sum is 58.

The spelling of 140778259717 in words is "one hundred forty billion, seven hundred seventy-eight million, two hundred fifty-nine thousand, seven hundred seventeen".