53705071845 has 64 divisors (see below), whose sum is σ = 97316640000. Its totient is φ = 28092653568.

The previous prime is 53705071817. The next prime is 53705071883. The reversal of 53705071845 is 54817050735.

It is a happy number.

53705071845 is a `hidden beast` number, since 537 + 0 + 5 + 0 + 71 + 8 + 45 = 666.

It is not a de Polignac number, because 53705071845 - 2¹¹ = 53705069797 is a prime.

It is a super-2 number, since 2×53705071845² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 53705071845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3568777 + ... + 3583793.

It is an arithmetic number, because the mean of its divisors is an integer number (1520572500).

Almost surely, 2^53705071845 is an apocalyptic number.

It is an amenable number.

53705071845 is a deficient number, since it is larger than the sum of its proper divisors (43611568155).

53705071845 is a wasteful number, since it uses less digits than its factorization.

53705071845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15539 (or 15533 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The spelling of 53705071845 in words is "fifty-three billion, seven hundred five million, seventy-one thousand, eight hundred forty-five".