207638647023 has 8 divisors (see below), whose sum is σ = 276892945200. Its totient is φ = 138405056768.

The previous prime is 207638647019. The next prime is 207638647087. The reversal of 207638647023 is 320746836702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 207638647023 - 2² = 207638647019 is a prime.

It is a super-2 number, since 2×207638647023² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207638647423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5153568 + ... + 5193701.

It is an arithmetic number, because the mean of its divisors is an integer number (34611618150).

Almost surely, 2^207638647023 is an apocalyptic number.

207638647023 is a deficient number, since it is larger than the sum of its proper divisors (69254298177).

207638647023 is a wasteful number, since it uses less digits than its factorization.

207638647023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10353961.

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 207638647023 in words is "two hundred seven billion, six hundred thirty-eight million, six hundred forty-seven thousand, twenty-three".