1953119457 has 6 divisors (see below), whose sum is σ = 2821172562. Its totient is φ = 1302079632.

The previous prime is 1953119431. The next prime is 1953119489. The reversal of 1953119457 is 7549113591.

1953119457 is a `hidden beast` number, since 195 + 3 + 1 + 1 + 9 + 457 = 666.

1953119457 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1801238481 + 151880976 = 42441^2 + 12324^2 .

It is not a de Polignac number, because 1953119457 - 2⁶ = 1953119393 is a prime.

It is a super-2 number, since 2×1953119457² = 7629351226623949698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1953119557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108506628 + ... + 108506645.

It is an arithmetic number, because the mean of its divisors is an integer number (470195427).

Almost surely, 2^1953119457 is an apocalyptic number.

It is an amenable number.

1953119457 is a deficient number, since it is larger than the sum of its proper divisors (868053105).

1953119457 is a wasteful number, since it uses less digits than its factorization.

1953119457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217013279 (or 217013276 counting only the distinct ones).

The product of its digits is 170100, while the sum is 45.

The square root of 1953119457 is about 44194.1111122285. Note that the first 5 decimals coincide. The cubic root of 1953119457 is about 1249.9988174922.

The spelling of 1953119457 in words is "one billion, nine hundred fifty-three million, one hundred nineteen thousand, four hundred fifty-seven".