1953461249389 has 8 divisors (see below), whose sum is σ = 2124556485912. Its totient is φ = 1785341582400.

The previous prime is 1953461249387. The next prime is 1953461249447. The reversal of 1953461249389 is 9839421643591.

It can be written as a sum of positive squares in 4 ways, for example, as 895546146889 + 1057915102500 = 946333^2 + 1028550^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1953461249389 - 2¹ = 1953461249387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1953461249389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1953461249387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743891014 + ... + 743893639.

It is an arithmetic number, because the mean of its divisors is an integer number (265569560739).

Almost surely, 2^{1953461249389} is an apocalyptic number.

It is an amenable number.

1953461249389 is a deficient number, since it is larger than the sum of its proper divisors (171095236523).

1953461249389 is a wasteful number, since it uses less digits than its factorization.

1953461249389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487784767.

The product of its digits is 50388480, while the sum is 64.

The spelling of 1953461249389 in words is "one trillion, nine hundred fifty-three billion, four hundred sixty-one million, two hundred forty-nine thousand, three hundred eighty-nine".