647514452023 has 4 divisors (see below), whose sum is σ = 648931333120. Its totient is φ = 646097570928.

The previous prime is 647514451999. The next prime is 647514452041. The reversal of 647514452023 is 320254415746.

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 647514452023 - 2¹³ = 647514443831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647514452723) 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, 708439863 + ... + 708440776.

It is an arithmetic number, because the mean of its divisors is an integer number (162232833280).

Almost surely, 2^647514452023 is an apocalyptic number.

647514452023 is a deficient number, since it is larger than the sum of its proper divisors (1416881097).

647514452023 is a wasteful number, since it uses less digits than its factorization.

647514452023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416881096.

The product of its (nonzero) digits is 806400, while the sum is 43.

Adding to 647514452023 its reverse (320254415746), we get a palindrome (967768867769).

The spelling of 647514452023 in words is "six hundred forty-seven billion, five hundred fourteen million, four hundred fifty-two thousand, twenty-three".