57012261261 has 8 divisors (see below), whose sum is σ = 76614902784. Its totient is φ = 37708896960.

The previous prime is 57012261199. The next prime is 57012261269. The reversal of 57012261261 is 16216221075.

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

It is not a de Polignac number, because 57012261261 - 2¹⁹ = 57011736973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57012261269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74818860 + ... + 74819621.

It is an arithmetic number, because the mean of its divisors is an integer number (9576862848).

Almost surely, 2^57012261261 is an apocalyptic number.

It is an amenable number.

57012261261 is a deficient number, since it is larger than the sum of its proper divisors (19602641523).

57012261261 is a wasteful number, since it uses less digits than its factorization.

57012261261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149638611.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 57012261261 in words is "fifty-seven billion, twelve million, two hundred sixty-one thousand, two hundred sixty-one".