102808727044 has 9 divisors (see below), whose sum is σ = 179916394567. Its totient is φ = 51404042884.

The previous prime is 102808727041. The next prime is 102808727053. The reversal of 102808727044 is 440727808201.

The square root of 102808727044 is 320638.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102808727041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 561117 + ... + 721435.

Almost surely, 2^102808727044 is an apocalyptic number.

102808727044 is the 320638-th square number.

It is an amenable number.

102808727044 is a deficient number, since it is larger than the sum of its proper divisors (77107667523).

102808727044 is an frugal number, since it uses more digits than its factorization.

102808727044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320642 (or 160321 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 43.

The spelling of 102808727044 in words is "one hundred two billion, eight hundred eight million, seven hundred twenty-seven thousand, forty-four".