57212894138 has 8 divisors (see below), whose sum is σ = 86264001588. Its totient is φ = 28458226944.

The previous prime is 57212894119. The next prime is 57212894143. The reversal of 57212894138 is 83149821275.

It can be written as a sum of positive squares in 2 ways, for example, as 52662447289 + 4550446849 = 229483^2 + 67457^2 .

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

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, 74109581 + ... + 74110352.

Almost surely, 2^57212894138 is an apocalyptic number.

57212894138 is a deficient number, since it is larger than the sum of its proper divisors (29051107450).

57212894138 is a wasteful number, since it uses less digits than its factorization.

57212894138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148220128.

The product of its digits is 967680, while the sum is 50.

The spelling of 57212894138 in words is "fifty-seven billion, two hundred twelve million, eight hundred ninety-four thousand, one hundred thirty-eight".