1950055555042 has 16 divisors (see below), whose sum is σ = 3342975330240.
Its totient is φ = 835732357488.
The previous prime is 1950055554959. The next prime is 1950055555061. The reversal of 1950055555042 is 2405555500591.
It is a junction number, because it is equal to n+sod(n) for n = 1950055554983 and 1950055555001.
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, 2121273 + ... + 2898259.
It is an arithmetic number, because the mean of its divisors is an integer number (208935958140).
Almost surely, 21950055555042 is an apocalyptic number.
1950055555042 is a deficient number, since it is larger than the sum of its proper divisors (1392919775198).
1950055555042 is a wasteful number, since it uses less digits than its factorization.
1950055555042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 956265.
The product of its (nonzero) digits is 1125000, while the sum is 46.
The spelling of 1950055555042 in words is "one trillion, nine hundred fifty billion, fifty-five million, five hundred fifty-five thousand, forty-two".