672749426140 has 48 divisors (see below), whose sum is σ = 1541379248640. Its totient is φ = 244608937280.

The previous prime is 672749426123. The next prime is 672749426143. The reversal of 672749426140 is 41624947276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672749426143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1867089 + ... + 2198071.

It is an arithmetic number, because the mean of its divisors is an integer number (32112067680).

Almost surely, 2^672749426140 is an apocalyptic number.

It is an amenable number.

672749426140 is an abundant number, since it is smaller than the sum of its proper divisors (868629822500).

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

672749426140 is a wasteful number, since it uses less digits than its factorization.

672749426140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340242 (or 340240 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 672749426140 in words is "six hundred seventy-two billion, seven hundred forty-nine million, four hundred twenty-six thousand, one hundred forty".