83509847534156 has 6 divisors (see below), whose sum is σ = 146142233184780. Its totient is φ = 41754923767076.

The previous prime is 83509847534131. The next prime is 83509847534287. The reversal of 83509847534156 is 65143574890538.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10438730941766 + ... + 10438730941773.

It is an arithmetic number, because the mean of its divisors is an integer number (24357038864130).

Almost surely, 2^{83509847534156} is an apocalyptic number.

It is an amenable number.

83509847534156 is a deficient number, since it is larger than the sum of its proper divisors (62632385650624).

83509847534156 is a wasteful number, since it uses less digits than its factorization.

83509847534156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20877461883543 (or 20877461883541 counting only the distinct ones).

The product of its (nonzero) digits is 435456000, while the sum is 68.

The spelling of 83509847534156 in words is "eighty-three trillion, five hundred nine billion, eight hundred forty-seven million, five hundred thirty-four thousand, one hundred fifty-six".