71102800669 has 4 divisors (see below), whose sum is σ = 71161419196. Its totient is φ = 71044182144.

The previous prime is 71102800649. The next prime is 71102800751. The reversal of 71102800669 is 96600820117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96600820117 = 151049 ⋅639533.

It can be written as a sum of positive squares in 2 ways, for example, as 2137212900 + 68965587769 = 46230^2 + 262613^2 .

It is a cyclic number.

It is not a de Polignac number, because 71102800669 - 2¹⁹ = 71102276381 is a prime.

It is a super-3 number, since 3×71102800669³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71102800649) 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, 29307444 + ... + 29309869.

It is an arithmetic number, because the mean of its divisors is an integer number (17790354799).

Almost surely, 2^71102800669 is an apocalyptic number.

It is an amenable number.

71102800669 is a deficient number, since it is larger than the sum of its proper divisors (58618527).

71102800669 is a wasteful number, since it uses less digits than its factorization.

71102800669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58618526.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 71102800669 in words is "seventy-one billion, one hundred two million, eight hundred thousand, six hundred sixty-nine".