206914137969 has 16 divisors (see below), whose sum is σ = 343961164800. Its totient is φ = 107487863760.

The previous prime is 206914137959. The next prime is 206914137979. The reversal of 206914137969 is 969731419602.

It is an interprime number because it is at equal distance from previous prime (206914137959) and next prime (206914137979).

It is not a de Polignac number, because 206914137969 - 2¹¹ = 206914135921 is a prime.

It is a super-2 number, since 2×206914137969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206914137959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447865869 + ... + 447866330.

It is an arithmetic number, because the mean of its divisors is an integer number (21497572800).

Almost surely, 2^206914137969 is an apocalyptic number.

It is an amenable number.

206914137969 is a deficient number, since it is larger than the sum of its proper divisors (137047026831).

206914137969 is a wasteful number, since it uses less digits than its factorization.

206914137969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895732220.

The product of its (nonzero) digits is 4408992, while the sum is 57.

The spelling of 206914137969 in words is "two hundred six billion, nine hundred fourteen million, one hundred thirty-seven thousand, nine hundred sixty-nine".