71746772053 has 8 divisors (see below), whose sum is σ = 78362504640. Its totient is φ = 65146589280.

The previous prime is 71746772047. The next prime is 71746772077. The reversal of 71746772053 is 35027764717.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71746772053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71746771988 and 71746772006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71746772023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3877800 + ... + 3896257.

It is an arithmetic number, because the mean of its divisors is an integer number (9795313080).

Almost surely, 2^71746772053 is an apocalyptic number.

It is an amenable number.

71746772053 is a deficient number, since it is larger than the sum of its proper divisors (6615732587).

71746772053 is a wasteful number, since it uses less digits than its factorization.

71746772053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7774907.

The product of its (nonzero) digits is 1728720, while the sum is 49.

The spelling of 71746772053 in words is "seventy-one billion, seven hundred forty-six million, seven hundred seventy-two thousand, fifty-three".