673750618266 has 64 divisors (see below), whose sum is σ = 1534225453056. Its totient is φ = 195250440000.

The previous prime is 673750618213. The next prime is 673750618271. The reversal of 673750618266 is 662816057376.

673750618266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×673750618266² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7907391 + ... + 7992141.

It is an arithmetic number, because the mean of its divisors is an integer number (23972272704).

Almost surely, 2^673750618266 is an apocalyptic number.

673750618266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

673750618266 is an abundant number, since it is smaller than the sum of its proper divisors (860474834790).

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

673750618266 is a wasteful number, since it uses less digits than its factorization.

673750618266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90027.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 673750618266 in words is "six hundred seventy-three billion, seven hundred fifty million, six hundred eighteen thousand, two hundred sixty-six".