8140690169 has 8 divisors (see below), whose sum is σ = 8250264960. Its totient is φ = 8031278736.

The previous prime is 8140690153. The next prime is 8140690171. The reversal of 8140690169 is 9610960418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8140690169 - 2⁴ = 8140690153 is a prime.

It is a super-2 number, since 2×8140690169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8140690189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61199 + ... + 141515.

It is an arithmetic number, because the mean of its divisors is an integer number (1031283120).

Almost surely, 2^8140690169 is an apocalyptic number.

It is an amenable number.

8140690169 is a deficient number, since it is larger than the sum of its proper divisors (109574791).

8140690169 is a wasteful number, since it uses less digits than its factorization.

8140690169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81679.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 8140690169 is about 90225.7733078526. The cubic root of 8140690169 is about 2011.6561162554.

The spelling of 8140690169 in words is "eight billion, one hundred forty million, six hundred ninety thousand, one hundred sixty-nine".