1950879834121 has 9 divisors (see below), whose sum is σ = 1954825196583. Its totient is φ = 1946942426880.

The previous prime is 1950879834103. The next prime is 1950879834157. The reversal of 1950879834121 is 1214389780591.

The square root of 1950879834121 is 1396739.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1760958194121 + 189921640000 = 1327011^2 + 435800^2 .

It is not a de Polignac number, because 1950879834121 - 2⁷ = 1950879833993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1950879837121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 895308610 + ... + 895310788.

Almost surely, 2^{1950879834121} is an apocalyptic number.

1950879834121 is the 1396739-th square number.

1950879834121 is the 698370-th centered octagonal number.

It is an amenable number.

1950879834121 is a deficient number, since it is larger than the sum of its proper divisors (3945362462).

1950879834121 is an frugal number, since it uses more digits than its factorization.

1950879834121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5640 (or 2820 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 1950879834121 in words is "one trillion, nine hundred fifty billion, eight hundred seventy-nine million, eight hundred thirty-four thousand, one hundred twenty-one".