102725423228 has 6 divisors (see below), whose sum is σ = 179769490656. Its totient is φ = 51362711612.

The previous prime is 102725423221. The next prime is 102725423239. The reversal of 102725423228 is 822324527201.

It is a junction number, because it is equal to n+sod(n) for n = 102725423191 and 102725423200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102725423221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12840677900 + ... + 12840677907.

It is an arithmetic number, because the mean of its divisors is an integer number (29961581776).

Almost surely, 2^102725423228 is an apocalyptic number.

It is an amenable number.

102725423228 is a deficient number, since it is larger than the sum of its proper divisors (77044067428).

102725423228 is a wasteful number, since it uses less digits than its factorization.

102725423228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25681355811 (or 25681355809 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 102725423228 in words is "one hundred two billion, seven hundred twenty-five million, four hundred twenty-three thousand, two hundred twenty-eight".