71923353789 has 32 divisors (see below), whose sum is σ = 116080369920. Its totient is φ = 38669478912.

The previous prime is 71923353779. The next prime is 71923353791. The reversal of 71923353789 is 98735332917.

It is not a de Polignac number, because 71923353789 - 2⁹ = 71923353277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71923353739) 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, 1188927 + ... + 1247955.

It is an arithmetic number, because the mean of its divisors is an integer number (3627511560).

Almost surely, 2^71923353789 is an apocalyptic number.

It is an amenable number.

71923353789 is a deficient number, since it is larger than the sum of its proper divisors (44157016131).

71923353789 is a wasteful number, since it uses less digits than its factorization.

71923353789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62469.

The product of its digits is 8573040, while the sum is 57.

The spelling of 71923353789 in words is "seventy-one billion, nine hundred twenty-three million, three hundred fifty-three thousand, seven hundred eighty-nine".