57778960147 has 4 divisors (see below), whose sum is σ = 57781945240. Its totient is φ = 57775975056.

The previous prime is 57778960117. The next prime is 57778960153. The reversal of 57778960147 is 74106987775.

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 57778960147 - 2¹⁹ = 57778435859 is a prime.

It is a super-2 number, since 2×57778960147² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57778960117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463322 + ... + 1502287.

It is an arithmetic number, because the mean of its divisors is an integer number (14445486310).

Almost surely, 2^57778960147 is an apocalyptic number.

57778960147 is a deficient number, since it is larger than the sum of its proper divisors (2985093).

57778960147 is a wasteful number, since it uses less digits than its factorization.

57778960147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985092.

The product of its (nonzero) digits is 20744640, while the sum is 61.

The spelling of 57778960147 in words is "fifty-seven billion, seven hundred seventy-eight million, nine hundred sixty thousand, one hundred forty-seven".