672693464520 has 768 divisors, whose sum is σ = 2827892390400. Its totient is φ = 139229798400.

The previous prime is 672693464479. The next prime is 672693464581. The reversal of 672693464520 is 25464396276.

672693464520 is a `hidden beast` number, since 6 + 7 + 26 + 9 + 34 + 64 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 257046252 + ... + 257048868.

It is an arithmetic number, because the mean of its divisors is an integer number (3682151550).

Almost surely, 2^672693464520 is an apocalyptic number.

672693464520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672693464520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413946195200).

672693464520 is an abundant number, since it is smaller than the sum of its proper divisors (2155198925880).

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

672693464520 is a wasteful number, since it uses less digits than its factorization.

672693464520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 672693464520 in words is "six hundred seventy-two billion, six hundred ninety-three million, four hundred sixty-four thousand, five hundred twenty".