57212609451 has 4 divisors (see below), whose sum is σ = 76283479272. Its totient is φ = 38141739632.

The previous prime is 57212609437. The next prime is 57212609477. The reversal of 57212609451 is 15490621275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57212609451 - 2²¹ = 57210512299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57212609431) 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, 9535434906 + ... + 9535434911.

It is an arithmetic number, because the mean of its divisors is an integer number (19070869818).

Almost surely, 2^57212609451 is an apocalyptic number.

57212609451 is a deficient number, since it is larger than the sum of its proper divisors (19070869821).

57212609451 is a wasteful number, since it uses less digits than its factorization.

57212609451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19070869820.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 57212609451 in words is "fifty-seven billion, two hundred twelve million, six hundred nine thousand, four hundred fifty-one".