71489986923 has 16 divisors (see below), whose sum is σ = 99910379520. Its totient is φ = 45383378304.

The previous prime is 71489986889. The next prime is 71489986943. The reversal of 71489986923 is 32968998417.

It is not a de Polignac number, because 71489986923 - 2¹² = 71489982827 is a prime.

It is a super-2 number, since 2×71489986923² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71489986943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307678 + ... + 2338451.

It is an arithmetic number, because the mean of its divisors is an integer number (6244398720).

Almost surely, 2^71489986923 is an apocalyptic number.

71489986923 is a deficient number, since it is larger than the sum of its proper divisors (28420392597).

71489986923 is a wasteful number, since it uses less digits than its factorization.

71489986923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4646378.

The product of its digits is 47029248, while the sum is 66.

The spelling of 71489986923 in words is "seventy-one billion, four hundred eighty-nine million, nine hundred eighty-six thousand, nine hundred twenty-three".