102749738116 has 27 divisors (see below), whose sum is σ = 182098856023. Its totient is φ = 50729609960.

The previous prime is 102749738081. The next prime is 102749738149. The reversal of 102749738116 is 611837947201.

The square root of 102749738116 is 320546.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102749738116.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 53209671 + ... + 53211601.

Almost surely, 2^102749738116 is an apocalyptic number.

102749738116 is the 320546-th square number.

It is an amenable number.

102749738116 is a deficient number, since it is larger than the sum of its proper divisors (79349117907).

102749738116 is an frugal number, since it uses more digits than its factorization.

102749738116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

Multiplying 102749738116 by its sum of digits (49), we get a square (5034737167684 = 2243822²).

The spelling of 102749738116 in words is "one hundred two billion, seven hundred forty-nine million, seven hundred thirty-eight thousand, one hundred sixteen".