206474670087 has 32 divisors (see below), whose sum is σ = 328339338240. Its totient is φ = 112844793600.

The previous prime is 206474670053. The next prime is 206474670121. The reversal of 206474670087 is 780076474602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (206474670053) and next prime (206474670121).

It is not a de Polignac number, because 206474670087 - 2⁷ = 206474669959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206474670007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9553089 + ... + 9574677.

It is an arithmetic number, because the mean of its divisors is an integer number (10260604320).

Almost surely, 2^206474670087 is an apocalyptic number.

206474670087 is a deficient number, since it is larger than the sum of its proper divisors (121864668153).

206474670087 is a wasteful number, since it uses less digits than its factorization.

206474670087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41423.

The product of its (nonzero) digits is 3161088, while the sum is 51.

The spelling of 206474670087 in words is "two hundred six billion, four hundred seventy-four million, six hundred seventy thousand, eighty-seven".