140388630855 has 16 divisors (see below), whose sum is σ = 245041974144. Its totient is φ = 68067214880.

The previous prime is 140388630847. The next prime is 140388630901. The reversal of 140388630855 is 558036883041.

It is a happy number.

It is not a de Polignac number, because 140388630855 - 2³ = 140388630847 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 140388630798 and 140388630807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425419929 + ... + 425420258.

It is an arithmetic number, because the mean of its divisors is an integer number (15315123384).

Almost surely, 2^140388630855 is an apocalyptic number.

140388630855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140388630855 is a deficient number, since it is larger than the sum of its proper divisors (104653343289).

140388630855 is a wasteful number, since it uses less digits than its factorization.

140388630855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850840206.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 140388630855 in words is "one hundred forty billion, three hundred eighty-eight million, six hundred thirty thousand, eight hundred fifty-five".