71452730811 has 32 divisors (see below), whose sum is σ = 118890713088. Its totient is φ = 37083255840.

The previous prime is 71452730809. The next prime is 71452730837. The reversal of 71452730811 is 11803725417.

It is a happy number.

It is not a de Polignac number, because 71452730811 - 2¹ = 71452730809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71452730811.

It is not an unprimeable number, because it can be changed into a prime (71452730891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100060 + ... + 391046.

It is an arithmetic number, because the mean of its divisors is an integer number (3715334784).

Almost surely, 2^71452730811 is an apocalyptic number.

71452730811 is a deficient number, since it is larger than the sum of its proper divisors (47437982277).

71452730811 is a wasteful number, since it uses less digits than its factorization.

71452730811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292071.

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 71452730811 in words is "seventy-one billion, four hundred fifty-two million, seven hundred thirty thousand, eight hundred eleven".