672740013320 has 128 divisors (see below), whose sum is σ = 1619901504000. Its totient is φ = 250554249216.

The previous prime is 672740013301. The next prime is 672740013391. The reversal of 672740013320 is 23310047276.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 78230381 + ... + 78238979.

It is an arithmetic number, because the mean of its divisors is an integer number (12655480500).

Almost surely, 2^672740013320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672740013320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809950752000).

672740013320 is an abundant number, since it is smaller than the sum of its proper divisors (947161490680).

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

672740013320 is a wasteful number, since it uses less digits than its factorization.

672740013320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9847 (or 9843 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 672740013320 in words is "six hundred seventy-two billion, seven hundred forty million, thirteen thousand, three hundred twenty".