57644623537630 has 32 divisors (see below), whose sum is σ = 106389592518528. Its totient is φ = 22475751396000.

The previous prime is 57644623537597. The next prime is 57644623537639. The reversal of 57644623537630 is 3673532644675.

It is a happy number.

It is a super-3 number, since 3×57644623537630³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57644623537639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136303396 + ... + 136725655.

It is an arithmetic number, because the mean of its divisors is an integer number (3324674766204).

Almost surely, 2^{57644623537630} is an apocalyptic number.

57644623537630 is a deficient number, since it is larger than the sum of its proper divisors (48744968980898).

57644623537630 is a wasteful number, since it uses less digits than its factorization.

57644623537630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273029592.

The product of its (nonzero) digits is 228614400, while the sum is 61.

The spelling of 57644623537630 in words is "fifty-seven trillion, six hundred forty-four billion, six hundred twenty-three million, five hundred thirty-seven thousand, six hundred thirty".