83437918961 has 8 divisors (see below), whose sum is σ = 91648057920. Its totient is φ = 75609646992.

The previous prime is 83437918903. The next prime is 83437919063. The reversal of 83437918961 is 16981973438.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83437918961 - 2⁶ = 83437918897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83437918961.

It is not an unprimeable number, because it can be changed into a prime (83437911961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95466290 + ... + 95467163.

It is an arithmetic number, because the mean of its divisors is an integer number (11456007240).

Almost surely, 2^83437918961 is an apocalyptic number.

It is an amenable number.

83437918961 is a deficient number, since it is larger than the sum of its proper divisors (8210138959).

83437918961 is a wasteful number, since it uses less digits than its factorization.

83437918961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190933495.

The product of its digits is 7838208, while the sum is 59.

The spelling of 83437918961 in words is "eighty-three billion, four hundred thirty-seven million, nine hundred eighteen thousand, nine hundred sixty-one".