57354780657 has 4 divisors (see below), whose sum is σ = 76473040880. Its totient is φ = 38236520436.

The previous prime is 57354780641. The next prime is 57354780677. The reversal of 57354780657 is 75608745375.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57354780657 - 2⁴ = 57354780641 is a prime.

It is a super-3 number, since 3×57354780657³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57354780597 and 57354780606.

It is not an unprimeable number, because it can be changed into a prime (57354780677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9559130107 + ... + 9559130112.

It is an arithmetic number, because the mean of its divisors is an integer number (19118260220).

Almost surely, 2^57354780657 is an apocalyptic number.

It is an amenable number.

57354780657 is a deficient number, since it is larger than the sum of its proper divisors (19118260223).

57354780657 is a wasteful number, since it uses less digits than its factorization.

57354780657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19118260222.

The product of its (nonzero) digits is 24696000, while the sum is 57.

The spelling of 57354780657 in words is "fifty-seven billion, three hundred fifty-four million, seven hundred eighty thousand, six hundred fifty-seven".