83437742055771 has 24 divisors (see below), whose sum is σ = 121067528924160. Its totient is φ = 55373025982896.

The previous prime is 83437742055763. The next prime is 83437742055791. The reversal of 83437742055771 is 17755024773438.

It is a happy number.

83437742055771 is a `hidden beast` number, since 8 + 3 + 4 + 3 + 7 + 7 + 4 + 2 + 0 + 557 + 71 = 666.

It is not a de Polignac number, because 83437742055771 - 2³ = 83437742055763 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83437742055699 and 83437742055708.

It is not an unprimeable number, because it can be changed into a prime (83437742055761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40661980 + ... + 42664646.

It is an arithmetic number, because the mean of its divisors is an integer number (5044480371840).

Almost surely, 2^{83437742055771} is an apocalyptic number.

83437742055771 is a deficient number, since it is larger than the sum of its proper divisors (37629786868389).

83437742055771 is a wasteful number, since it uses less digits than its factorization.

83437742055771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023655 (or 2023652 counting only the distinct ones).

The product of its (nonzero) digits is 138297600, while the sum is 63.

The spelling of 83437742055771 in words is "eighty-three trillion, four hundred thirty-seven billion, seven hundred forty-two million, fifty-five thousand, seven hundred seventy-one".