78448051100 has 36 divisors (see below), whose sum is σ = 174384286608. Its totient is φ = 30613872000.

The previous prime is 78448051093. The next prime is 78448051109. The reversal of 78448051100 is 115084487.

It is a happy number.

It is a super-2 number, since 2×78448051100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78448051109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9562736 + ... + 9570935.

Almost surely, 2^78448051100 is an apocalyptic number.

It is an amenable number.

78448051100 is an abundant number, since it is smaller than the sum of its proper divisors (95936235508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78448051100 is a wasteful number, since it uses less digits than its factorization.

78448051100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19133726 (or 19133719 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 78448051100 in words is "seventy-eight billion, four hundred forty-eight million, fifty-one thousand, one hundred".