71020730076053 has 4 divisors (see below), whose sum is σ = 71317887942720. Its totient is φ = 70723572209388.

The previous prime is 71020730076047. The next prime is 71020730076059. The reversal of 71020730076053 is 35067003702017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (71020730076047) and next prime (71020730076059).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71020730076053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71020730076053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71020730076059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148578932975 + ... + 148578933452.

It is an arithmetic number, because the mean of its divisors is an integer number (17829471985680).

Almost surely, 2^{71020730076053} is an apocalyptic number.

It is an amenable number.

71020730076053 is a deficient number, since it is larger than the sum of its proper divisors (297157866667).

71020730076053 is a wasteful number, since it uses less digits than its factorization.

71020730076053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297157866666.

The product of its (nonzero) digits is 185220, while the sum is 41.

The spelling of 71020730076053 in words is "seventy-one trillion, twenty billion, seven hundred thirty million, seventy-six thousand, fifty-three".