78001001102 has 32 divisors (see below), whose sum is σ = 122922455040. Its totient is φ = 37050805440.

The previous prime is 78001001069. The next prime is 78001001129. The reversal of 78001001102 is 20110010087.

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, 4494602 + ... + 4511922.

It is an arithmetic number, because the mean of its divisors is an integer number (3841326720).

Almost surely, 2^78001001102 is an apocalyptic number.

78001001102 is a deficient number, since it is larger than the sum of its proper divisors (44921453938).

78001001102 is a wasteful number, since it uses less digits than its factorization.

78001001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18008.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 78001001102 its reverse (20110010087), we get a palindrome (98111011189).

The spelling of 78001001102 in words is "seventy-eight billion, one million, one thousand, one hundred two".