100143625778 has 64 divisors (see below), whose sum is σ = 183933130752. Its totient is φ = 39958638720.

The previous prime is 100143625739. The next prime is 100143625787. The reversal of 100143625778 is 877526341001.

It is a super-2 number, since 2×100143625778² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5839925 + ... + 5857047.

It is an arithmetic number, because the mean of its divisors is an integer number (2873955168).

Almost surely, 2^100143625778 is an apocalyptic number.

100143625778 is a deficient number, since it is larger than the sum of its proper divisors (83789504974).

100143625778 is a wasteful number, since it uses less digits than its factorization.

100143625778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17639.

The product of its (nonzero) digits is 282240, while the sum is 44.

Adding to 100143625778 its reverse (877526341001), we get a palindrome (977669966779).

The spelling of 100143625778 in words is "one hundred billion, one hundred forty-three million, six hundred twenty-five thousand, seven hundred seventy-eight".