57351681406 has 8 divisors (see below), whose sum is σ = 91087964640. Its totient is φ = 26989026528.

The previous prime is 57351681397. The next prime is 57351681437. The reversal of 57351681406 is 60418615375.

It is a happy number.

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

It is a super-2 number, since 2×57351681406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843407046 + ... + 843407113.

It is an arithmetic number, because the mean of its divisors is an integer number (11385995580).

Almost surely, 2^57351681406 is an apocalyptic number.

57351681406 is a deficient number, since it is larger than the sum of its proper divisors (33736283234).

57351681406 is a wasteful number, since it uses less digits than its factorization.

57351681406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686814178.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 57351681406 in words is "fifty-seven billion, three hundred fifty-one million, six hundred eighty-one thousand, four hundred six".