83373388853121 has 6 divisors (see below), whose sum is σ = 120428228343410. Its totient is φ = 55582259235408.

The previous prime is 83373388853107. The next prime is 83373388853147. The reversal of 83373388853121 is 12135888337338.

83373388853121 is a `hidden beast` number, since 8 + 3 + 3 + 73 + 3 + 8 + 8 + 8 + 531 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 82888187447025 + 485201406096 = 9104295^2 + 696564^2 .

It is not a de Polignac number, because 83373388853121 - 2³⁸ = 83098510946177 is a prime.

It is a super-2 number, since 2×83373388853121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83373388853021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4631854936276 + ... + 4631854936293.

Almost surely, 2^{83373388853121} is an apocalyptic number.

It is an amenable number.

83373388853121 is a deficient number, since it is larger than the sum of its proper divisors (37054839490289).

83373388853121 is a wasteful number, since it uses less digits than its factorization.

83373388853121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9263709872575 (or 9263709872572 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 83373388853121 in words is "eighty-three trillion, three hundred seventy-three billion, three hundred eighty-eight million, eight hundred fifty-three thousand, one hundred twenty-one".