71802238443 has 32 divisors (see below), whose sum is σ = 107378675712. Its totient is φ = 42386198400.

The previous prime is 71802238429. The next prime is 71802238483. The reversal of 71802238443 is 34483220817.

It is a happy number.

It is not a de Polignac number, because 71802238443 - 2¹² = 71802234347 is a prime.

It is a super-2 number, since 2×71802238443² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71802238395 and 71802238404.

It is not an unprimeable number, because it can be changed into a prime (71802238483) 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, 247963 + ... + 452868.

It is an arithmetic number, because the mean of its divisors is an integer number (3355583616).

Almost surely, 2^71802238443 is an apocalyptic number.

71802238443 is a deficient number, since it is larger than the sum of its proper divisors (35576437269).

71802238443 is a wasteful number, since it uses less digits than its factorization.

71802238443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700955.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 71802238443 in words is "seventy-one billion, eight hundred two million, two hundred thirty-eight thousand, four hundred forty-three".