78000100102 has 16 divisors (see below), whose sum is σ = 117283198032. Its totient is φ = 38905816320.

The previous prime is 78000100069. The next prime is 78000100109. The reversal of 78000100102 is 20100100087.

It is a self number, because there is not a number n which added to its sum of digits gives 78000100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78000100109) 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, 1361998 + ... + 1418110.

It is an arithmetic number, because the mean of its divisors is an integer number (7330199877).

Almost surely, 2^78000100102 is an apocalyptic number.

78000100102 is a deficient number, since it is larger than the sum of its proper divisors (39283097930).

78000100102 is a wasteful number, since it uses less digits than its factorization.

78000100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57783.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 78000100102 its reverse (20100100087), we get a palindrome (98100200189).

The spelling of 78000100102 in words is "seventy-eight billion, one hundred thousand, one hundred two".