102612515128 has 8 divisors (see below), whose sum is σ = 192398465880. Its totient is φ = 51306257560.

The previous prime is 102612515099. The next prime is 102612515149. The reversal of 102612515128 is 821515216201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 102612515093 and 102612515102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6413282188 + ... + 6413282203.

It is an arithmetic number, because the mean of its divisors is an integer number (24049808235).

Almost surely, 2^102612515128 is an apocalyptic number.

It is an amenable number.

102612515128 is a deficient number, since it is larger than the sum of its proper divisors (89785950752).

102612515128 is a wasteful number, since it uses less digits than its factorization.

102612515128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12826564397 (or 12826564393 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 34.

The spelling of 102612515128 in words is "one hundred two billion, six hundred twelve million, five hundred fifteen thousand, one hundred twenty-eight".