102550001939 has 16 divisors (see below), whose sum is σ = 127862323200. Its totient is φ = 79904232960.

The previous prime is 102550001929. The next prime is 102550001977. The reversal of 102550001939 is 939100055201.

It is a cyclic number.

It is not a de Polignac number, because 102550001939 - 2¹⁶ = 102549936403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102550001899 and 102550001908.

It is not an unprimeable number, because it can be changed into a prime (102550001929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737587 + ... + 1795635.

It is an arithmetic number, because the mean of its divisors is an integer number (7991395200).

Almost surely, 2^102550001939 is an apocalyptic number.

102550001939 is a deficient number, since it is larger than the sum of its proper divisors (25312321261).

102550001939 is a wasteful number, since it uses less digits than its factorization.

102550001939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81010.

The product of its (nonzero) digits is 12150, while the sum is 35.

The spelling of 102550001939 in words is "one hundred two billion, five hundred fifty million, one thousand, nine hundred thirty-nine".