57678877634 has 8 divisors (see below), whose sum is σ = 98878075968. Its totient is φ = 24719518980.

The previous prime is 57678877591. The next prime is 57678877639. The reversal of 57678877634 is 43677887675.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (57678877639) 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, 2059959902 + ... + 2059959929.

It is an arithmetic number, because the mean of its divisors is an integer number (12359759496).

Almost surely, 2^57678877634 is an apocalyptic number.

57678877634 is a deficient number, since it is larger than the sum of its proper divisors (41199198334).

57678877634 is a wasteful number, since it uses less digits than its factorization.

57678877634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119919840.

The product of its digits is 331914240, while the sum is 68.

The spelling of 57678877634 in words is "fifty-seven billion, six hundred seventy-eight million, eight hundred seventy-seven thousand, six hundred thirty-four".