672470475440 has 20 divisors (see below), whose sum is σ = 1563493855584. Its totient is φ = 268988190144.

The previous prime is 672470475377. The next prime is 672470475553. The reversal of 672470475440 is 44574074276.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4202940392 + ... + 4202940551.

Almost surely, 2^672470475440 is an apocalyptic number.

It is an amenable number.

672470475440 is an abundant number, since it is smaller than the sum of its proper divisors (891023380144).

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

672470475440 is a wasteful number, since it uses less digits than its factorization.

672470475440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8405880956 (or 8405880950 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 50.

The spelling of 672470475440 in words is "six hundred seventy-two billion, four hundred seventy million, four hundred seventy-five thousand, four hundred forty".