71023434732 has 36 divisors (see below), whose sum is σ = 179541638640. Its totient is φ = 23673136032.

The previous prime is 71023434731. The next prime is 71023434733. The reversal of 71023434732 is 23743432017.

It is an interprime number because it is at equal distance from previous prime (71023434731) and next prime (71023434733).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×71023434732² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (71023434731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 744994 + ... + 834902.

It is an arithmetic number, because the mean of its divisors is an integer number (4987267740).

Almost surely, 2^71023434732 is an apocalyptic number.

It is an amenable number.

71023434732 is an abundant number, since it is smaller than the sum of its proper divisors (108518203908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71023434732 is a wasteful number, since it uses less digits than its factorization.

71023434732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111862 (or 111857 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

Adding to 71023434732 its reverse (23743432017), we get a palindrome (94766866749).

The spelling of 71023434732 in words is "seventy-one billion, twenty-three million, four hundred thirty-four thousand, seven hundred thirty-two".