57678948109 has 4 divisors (see below), whose sum is σ = 60714682240. Its totient is φ = 54643213980.

The previous prime is 57678948101. The next prime is 57678948179. The reversal of 57678948109 is 90184987675.

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 a cyclic number.

It is not a de Polignac number, because 57678948109 - 2³ = 57678948101 is a prime.

It is a super-2 number, since 2×57678948109² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57678948101) 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, 1517867037 + ... + 1517867074.

It is an arithmetic number, because the mean of its divisors is an integer number (15178670560).

Almost surely, 2^57678948109 is an apocalyptic number.

It is an amenable number.

57678948109 is a deficient number, since it is larger than the sum of its proper divisors (3035734131).

57678948109 is a wasteful number, since it uses less digits than its factorization.

57678948109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035734130.

The product of its (nonzero) digits is 30481920, while the sum is 64.

The spelling of 57678948109 in words is "fifty-seven billion, six hundred seventy-eight million, nine hundred forty-eight thousand, one hundred nine".