207928689433 has 16 divisors (see below), whose sum is σ = 216466848000. Its totient is φ = 199549239552.

The previous prime is 207928689421. The next prime is 207928689467. The reversal of 207928689433 is 334986829702.

It is a cyclic number.

It is not a de Polignac number, because 207928689433 - 2¹³ = 207928681241 is a prime.

It is a super-2 number, since 2×207928689433² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207928689473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2943633 + ... + 3013441.

It is an arithmetic number, because the mean of its divisors is an integer number (13529178000).

Almost surely, 2^207928689433 is an apocalyptic number.

It is an amenable number.

207928689433 is a deficient number, since it is larger than the sum of its proper divisors (8538158567).

207928689433 is a wasteful number, since it uses less digits than its factorization.

207928689433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70944.

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 207928689433 in words is "two hundred seven billion, nine hundred twenty-eight million, six hundred eighty-nine thousand, four hundred thirty-three".