71473758553 has 2 divisors, whose sum is σ = 71473758554. Its totient is φ = 71473758552.

The previous prime is 71473758547. The next prime is 71473758593. The reversal of 71473758553 is 35585737417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71410269529 + 63489024 = 267227^2 + 7968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71473758553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71473758494 and 71473758503.

It is not a weakly prime, because it can be changed into another prime (71473758593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35736879276 + 35736879277.

It is an arithmetic number, because the mean of its divisors is an integer number (35736879277).

Almost surely, 2^71473758553 is an apocalyptic number.

It is an amenable number.

71473758553 is a deficient number, since it is larger than the sum of its proper divisors (1).

71473758553 is an equidigital number, since it uses as much as digits as its factorization.

71473758553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12348000, while the sum is 55.

The spelling of 71473758553 in words is "seventy-one billion, four hundred seventy-three million, seven hundred fifty-eight thousand, five hundred fifty-three".