57126357381 has 8 divisors (see below), whose sum is σ = 76169582944. Its totient is φ = 38083685040.

The previous prime is 57126357373. The next prime is 57126357383. The reversal of 57126357381 is 18375362175.

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

It is not a de Polignac number, because 57126357381 - 2³ = 57126357373 is a prime.

It is a super-2 number, since 2×57126357381² (a number of 22 digits) contains 22 as substring.

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 57126357381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57126357383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313326 + ... + 460896.

It is an arithmetic number, because the mean of its divisors is an integer number (9521197868).

Almost surely, 2^57126357381 is an apocalyptic number.

It is an amenable number.

57126357381 is a deficient number, since it is larger than the sum of its proper divisors (19043225563).

57126357381 is a wasteful number, since it uses less digits than its factorization.

57126357381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276611.

The product of its digits is 1058400, while the sum is 48.

The spelling of 57126357381 in words is "fifty-seven billion, one hundred twenty-six million, three hundred fifty-seven thousand, three hundred eighty-one".