1954051719876 has 81 divisors (see below), whose sum is σ = 5047756659309. Its totient is φ = 637363446048.

The previous prime is 1954051719803. The next prime is 1954051719901. The reversal of 1954051719876 is 6789171504591.

The square root of 1954051719876 is 1397874.

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

1954051719876 is a `hidden beast` number, since 1 + 9 + 5 + 40 + 517 + 1 + 9 + 8 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1657218528900 + 296833190976 = 1287330^2 + 544824^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 394197990 + ... + 394202946.

Almost surely, 2^{1954051719876} is an apocalyptic number.

1954051719876 is the 1397874-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1954051719876

1954051719876 is an abundant number, since it is smaller than the sum of its proper divisors (3093704939433).

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

1954051719876 is an frugal number, since it uses more digits than its factorization.

1954051719876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018 (or 5009 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 63.

The spelling of 1954051719876 in words is "one trillion, nine hundred fifty-four billion, fifty-one million, seven hundred nineteen thousand, eight hundred seventy-six".