71499044553 has 16 divisors (see below), whose sum is σ = 99727541376. Its totient is φ = 45478730880.

The previous prime is 71499044527. The next prime is 71499044557. The reversal of 71499044553 is 35544099417.

It is a happy number.

It is not a de Polignac number, because 71499044553 - 2⁶ = 71499044489 is a prime.

It is a super-2 number, since 2×71499044553² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71499044496 and 71499044505.

It is not an unprimeable number, because it can be changed into a prime (71499044557) 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, 1277668 + ... + 1332453.

It is an arithmetic number, because the mean of its divisors is an integer number (6232971336).

Almost surely, 2^71499044553 is an apocalyptic number.

It is an amenable number.

71499044553 is a deficient number, since it is larger than the sum of its proper divisors (28228496823).

71499044553 is a wasteful number, since it uses less digits than its factorization.

71499044553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610544.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 71499044553 in words is "seventy-one billion, four hundred ninety-nine million, forty-four thousand, five hundred fifty-three".