102126706728 has 32 divisors (see below), whose sum is σ = 255377223360. Its totient is φ = 34034174720.

The previous prime is 102126706699. The next prime is 102126706739. The reversal of 102126706728 is 827607621201.

It is a self number, because there is not a number n which added to its sum of digits gives 102126706728.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399900 + ... + 603467.

It is an arithmetic number, because the mean of its divisors is an integer number (7980538230).

Almost surely, 2^102126706728 is an apocalyptic number.

It is an amenable number.

102126706728 is an abundant number, since it is smaller than the sum of its proper divisors (153250516632).

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

102126706728 is a wasteful number, since it uses less digits than its factorization.

102126706728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007617 (or 1007613 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 102126706728 in words is "one hundred two billion, one hundred twenty-six million, seven hundred six thousand, seven hundred twenty-eight".