69771094542091 has 4 divisors (see below), whose sum is σ = 69958148415232. Its totient is φ = 69584040668952.

The previous prime is 69771094542013. The next prime is 69771094542101. The reversal of 69771094542091 is 19024549017796.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 69771094542091 - 2²¹ = 69771092444939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69571094542091) 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, 93526936011 + ... + 93526936756.

It is an arithmetic number, because the mean of its divisors is an integer number (17489537103808).

Almost surely, 2^{69771094542091} is an apocalyptic number.

69771094542091 is a deficient number, since it is larger than the sum of its proper divisors (187053873141).

69771094542091 is a wasteful number, since it uses less digits than its factorization.

69771094542091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187053873140.

The product of its (nonzero) digits is 34292160, while the sum is 64.

The spelling of 69771094542091 in words is "sixty-nine trillion, seven hundred seventy-one billion, ninety-four million, five hundred forty-two thousand, ninety-one".