71373487453 has 16 divisors (see below), whose sum is σ = 74971348480. Its totient is φ = 67866854400.

The previous prime is 71373487439. The next prime is 71373487469. The reversal of 71373487453 is 35478437317.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71373487453 is a prime.

It is a super-2 number, since 2×71373487453² (a number of 23 digits) contains 22 as substring.

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 71373487453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71373487483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332593 + ... + 503353.

It is an arithmetic number, because the mean of its divisors is an integer number (4685709280).

Almost surely, 2^71373487453 is an apocalyptic number.

It is an amenable number.

71373487453 is a deficient number, since it is larger than the sum of its proper divisors (3597861027).

71373487453 is a wasteful number, since it uses less digits than its factorization.

71373487453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171028.

The product of its digits is 5927040, while the sum is 52.

The spelling of 71373487453 in words is "seventy-one billion, three hundred seventy-three million, four hundred eighty-seven thousand, four hundred fifty-three".