207073406423551 has 4 divisors (see below), whose sum is σ = 207780141599352. Its totient is φ = 206366671247752.

The previous prime is 207073406423497. The next prime is 207073406423557. The reversal of 207073406423551 is 155324604370702.

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 207073406423551 - 2¹¹ = 207073406421503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 207073406423495 and 207073406423504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207073406423557) 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, 353367587461 + ... + 353367588046.

It is an arithmetic number, because the mean of its divisors is an integer number (51945035399838).

Almost surely, 2^{207073406423551} is an apocalyptic number.

207073406423551 is a deficient number, since it is larger than the sum of its proper divisors (706735175801).

207073406423551 is an equidigital number, since it uses as much as digits as its factorization.

207073406423551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706735175800.

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 207073406423551 in words is "two hundred seven trillion, seventy-three billion, four hundred six million, four hundred twenty-three thousand, five hundred fifty-one".