69696969696969 has 32 divisors (see below), whose sum is σ = 97396480512000. Its totient is φ = 44248915751040.

The previous prime is 69696969696967. The next prime is 69696969696973. The reversal of 69696969696969 is 96969696969696.

It is not a de Polignac number, because 69696969696969 - 2¹ = 69696969696967 is a prime.

It is a super-2 number, since 2×69696969696969² (a number of 28 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

69696969696969 is a strobogrammatic number because it is the same when read upside-down.

69696969696969 is an undulating number in base 10.

69696969696969 is a modest number, since divided by 69696969 gives 696969 as remainder.

It is not an unprimeable number, because it can be changed into a prime (69696969696967) 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, 76212114 + ... + 77121204.

It is an arithmetic number, because the mean of its divisors is an integer number (3043640016000).

Almost surely, 2^{69696969696969} is an apocalyptic number.

69696969696969 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

69696969696969 is a deficient number, since it is larger than the sum of its proper divisors (27699510815031).

69696969696969 is a wasteful number, since it uses less digits than its factorization.

69696969696969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914005.

The product of its digits is 1338925209984, while the sum is 105.

The spelling of 69696969696969 in words is "sixty-nine trillion, six hundred ninety-six billion, nine hundred sixty-nine million, six hundred ninety-six thousand, nine hundred sixty-nine".