69640041139 has 4 divisors (see below), whose sum is σ = 69640606024. Its totient is φ = 69639476256.

The previous prime is 69640041131. The next prime is 69640041167. The reversal of 69640041139 is 93114004696.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 69640041139 - 2³ = 69640041131 is a prime.

It is a super-2 number, since 2×69640041139² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69640041095 and 69640041104.

It is not an unprimeable number, because it can be changed into a prime (69640041131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9777 + ... + 373330.

It is an arithmetic number, because the mean of its divisors is an integer number (17410151506).

Almost surely, 2^69640041139 is an apocalyptic number.

69640041139 is a deficient number, since it is larger than the sum of its proper divisors (564885).

69640041139 is a wasteful number, since it uses less digits than its factorization.

69640041139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564884.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 69640041139 in words is "sixty-nine billion, six hundred forty million, forty-one thousand, one hundred thirty-nine".