640048706600 has 48 divisors (see below), whose sum is σ = 1506042357120. Its totient is φ = 252934904000.

The previous prime is 640048706587. The next prime is 640048706603. The reversal of 640048706600 is 6607840046.

It is not an unprimeable number, because it can be changed into a prime (640048706603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19261976 + ... + 19295175.

It is an arithmetic number, because the mean of its divisors is an integer number (31375882440).

Almost surely, 2^640048706600 is an apocalyptic number.

It is an amenable number.

640048706600 is an abundant number, since it is smaller than the sum of its proper divisors (865993650520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

640048706600 is a wasteful number, since it uses less digits than its factorization.

640048706600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38557250 (or 38557241 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 640048706600 in words is "six hundred forty billion, forty-eight million, seven hundred six thousand, six hundred".