71437548011 has 2 divisors, whose sum is σ = 71437548012. Its totient is φ = 71437548010.

The previous prime is 71437547989. The next prime is 71437548029. The reversal of 71437548011 is 11084573417.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71437548011 is a prime.

It is a super-2 number, since 2×71437548011² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71437548011.

It is not a weakly prime, because it can be changed into another prime (71437508011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35718774005 + 35718774006.

It is an arithmetic number, because the mean of its divisors is an integer number (35718774006).

Almost surely, 2^71437548011 is an apocalyptic number.

71437548011 is a deficient number, since it is larger than the sum of its proper divisors (1).

71437548011 is an equidigital number, since it uses as much as digits as its factorization.

71437548011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 71437548011 in words is "seventy-one billion, four hundred thirty-seven million, five hundred forty-eight thousand, eleven".