673375063581 has 48 divisors (see below), whose sum is σ = 1066255577088. Its totient is φ = 406118512800.

The previous prime is 673375063579. The next prime is 673375063597. The reversal of 673375063581 is 185360573376.

673375063581 is a `hidden beast` number, since 6 + 7 + 3 + 3 + 7 + 50 + 6 + 3 + 581 = 666.

It is not a de Polignac number, because 673375063581 - 2¹ = 673375063579 is a prime.

It is a super-2 number, since 2×673375063581² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673375063531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17905860 + ... + 17943426.

It is an arithmetic number, because the mean of its divisors is an integer number (22213657856).

Almost surely, 2^673375063581 is an apocalyptic number.

It is an amenable number.

673375063581 is a deficient number, since it is larger than the sum of its proper divisors (392880513507).

673375063581 is a wasteful number, since it uses less digits than its factorization.

673375063581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38462 (or 38459 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 54.

The spelling of 673375063581 in words is "six hundred seventy-three billion, three hundred seventy-five million, sixty-three thousand, five hundred eighty-one".