206945951485 has 48 divisors (see below), whose sum is σ = 314122064256. Its totient is φ = 129718012032.

The previous prime is 206945951479. The next prime is 206945951507. The reversal of 206945951485 is 584159549602.

It is not a de Polignac number, because 206945951485 - 2³¹ = 204798467837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12642 + ... + 643468.

It is an arithmetic number, because the mean of its divisors is an integer number (6544209672).

Almost surely, 2^206945951485 is an apocalyptic number.

It is an amenable number.

206945951485 is a deficient number, since it is larger than the sum of its proper divisors (107176112771).

206945951485 is a wasteful number, since it uses less digits than its factorization.

206945951485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630962 (or 630955 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 58.

The spelling of 206945951485 in words is "two hundred six billion, nine hundred forty-five million, nine hundred fifty-one thousand, four hundred eighty-five".