71223801837 has 8 divisors (see below), whose sum is σ = 94967743104. Its totient is φ = 47481197568.

The previous prime is 71223801809. The next prime is 71223801881. The reversal of 71223801837 is 73810832217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71223801837 - 2⁸ = 71223801581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71223806837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202533 + ... + 428330.

It is an arithmetic number, because the mean of its divisors is an integer number (11870967888).

Almost surely, 2^71223801837 is an apocalyptic number.

It is an amenable number.

71223801837 is a deficient number, since it is larger than the sum of its proper divisors (23743941267).

71223801837 is a wasteful number, since it uses less digits than its factorization.

71223801837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668499.

The product of its (nonzero) digits is 112896, while the sum is 42.

It can be divided in two parts, 7122380 and 1837, that added together give a palindrome (7124217).

The spelling of 71223801837 in words is "seventy-one billion, two hundred twenty-three million, eight hundred one thousand, eight hundred thirty-seven".