71142452045 has 16 divisors (see below), whose sum is σ = 97799667840. Its totient is φ = 48666957504.

The previous prime is 71142452033. The next prime is 71142452053. The reversal of 71142452045 is 54025424117.

It is a cyclic number.

It is not a de Polignac number, because 71142452045 - 2¹² = 71142447949 is a prime.

It is a super-2 number, since 2×71142452045² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 71142451996 and 71142452014.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2410922 + ... + 2440251.

It is an arithmetic number, because the mean of its divisors is an integer number (6112479240).

Almost surely, 2^71142452045 is an apocalyptic number.

It is an amenable number.

71142452045 is a deficient number, since it is larger than the sum of its proper divisors (26657215795).

71142452045 is a wasteful number, since it uses less digits than its factorization.

71142452045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851604.

The product of its (nonzero) digits is 44800, while the sum is 35.

The spelling of 71142452045 in words is "seventy-one billion, one hundred forty-two million, four hundred fifty-two thousand, forty-five".