103144636728 has 48 divisors (see below), whose sum is σ = 319257210480. Its totient is φ = 29469896064.

The previous prime is 103144636711. The next prime is 103144636753. The reversal of 103144636728 is 827636441301.

103144636728 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 4 + 4 + 636 + 7 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102325525 + ... + 102326532.

It is an arithmetic number, because the mean of its divisors is an integer number (6651191885).

Almost surely, 2^103144636728 is an apocalyptic number.

103144636728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

103144636728 is an abundant number, since it is smaller than the sum of its proper divisors (216112573752).

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

103144636728 is a wasteful number, since it uses less digits than its factorization.

103144636728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204652076 (or 204652069 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 103144636728 in words is "one hundred three billion, one hundred forty-four million, six hundred thirty-six thousand, seven hundred twenty-eight".