673901787180047 has 4 divisors (see below), whose sum is σ = 673901921481096. Its totient is φ = 673901652879000.

The previous prime is 673901787180043. The next prime is 673901787180157. The reversal of 673901787180047 is 740081787109376.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 673901787180047 - 2² = 673901787180043 is a prime.

It is a super-2 number, since 2×673901787180047² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673901787180043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59319329 + ... + 69760922.

It is an arithmetic number, because the mean of its divisors is an integer number (168475480370274).

Almost surely, 2^{673901787180047} is an apocalyptic number.

673901787180047 is a deficient number, since it is larger than the sum of its proper divisors (134301049).

673901787180047 is a wasteful number, since it uses less digits than its factorization.

673901787180047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134301048.

The product of its (nonzero) digits is 99574272, while the sum is 68.

The spelling of 673901787180047 in words is "six hundred seventy-three trillion, nine hundred one billion, seven hundred eighty-seven million, one hundred eighty thousand, forty-seven".