53971983386 has 8 divisors (see below), whose sum is σ = 80965646580. Its totient is φ = 26983434528.

The previous prime is 53971983383. The next prime is 53971983391. The reversal of 53971983386 is 68338917935.

It can be written as a sum of positive squares in 2 ways, for example, as 53352222361 + 619761025 = 230981^2 + 24895^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53971983383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1252091 + ... + 1294478.

Almost surely, 2^53971983386 is an apocalyptic number.

53971983386 is a deficient number, since it is larger than the sum of its proper divisors (26993663194).

53971983386 is a wasteful number, since it uses less digits than its factorization.

53971983386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557168.

The product of its digits is 29393280, while the sum is 62.

The spelling of 53971983386 in words is "fifty-three billion, nine hundred seventy-one million, nine hundred eighty-three thousand, three hundred eighty-six".