135973094216 has 8 divisors (see below), whose sum is σ = 254949551670. Its totient is φ = 67986547104.

The previous prime is 135973094209. The next prime is 135973094237. The reversal of 135973094216 is 612490379531.

It can be written as a sum of positive squares in only one way, i.e., 126202562500 + 9770531716 = 355250^2 + 98846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8498318381 + ... + 8498318396.

Almost surely, 2^135973094216 is an apocalyptic number.

It is an amenable number.

135973094216 is a deficient number, since it is larger than the sum of its proper divisors (118976457454).

135973094216 is a wasteful number, since it uses less digits than its factorization.

135973094216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16996636783 (or 16996636779 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 135973094216 in words is "one hundred thirty-five billion, nine hundred seventy-three million, ninety-four thousand, two hundred sixteen".