672523501256 has 16 divisors (see below), whose sum is σ = 1265634637440. Its totient is φ = 335020931280.

The previous prime is 672523501213. The next prime is 672523501259. The reversal of 672523501256 is 652105325276.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (672523501259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155100116 + ... + 155104451.

It is an arithmetic number, because the mean of its divisors is an integer number (79102164840).

Almost surely, 2^672523501256 is an apocalyptic number.

It is an amenable number.

672523501256 is a deficient number, since it is larger than the sum of its proper divisors (593111136184).

672523501256 is a wasteful number, since it uses less digits than its factorization.

672523501256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310204844 (or 310204840 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 672523501256 in words is "six hundred seventy-two billion, five hundred twenty-three million, five hundred one thousand, two hundred fifty-six".