71842719620 has 24 divisors (see below), whose sum is σ = 172422527424. Its totient is φ = 24631789536.

The previous prime is 71842719607. The next prime is 71842719623. The reversal of 71842719620 is 2691724817.

It is a super-2 number, since 2×71842719620² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (71842719623) 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, 256581002 + ... + 256581281.

It is an arithmetic number, because the mean of its divisors is an integer number (7184271976).

Almost surely, 2^71842719620 is an apocalyptic number.

71842719620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71842719620 is an abundant number, since it is smaller than the sum of its proper divisors (100579807804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71842719620 is a wasteful number, since it uses less digits than its factorization.

71842719620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513162299 (or 513162297 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 71842719620 in words is "seventy-one billion, eight hundred forty-two million, seven hundred nineteen thousand, six hundred twenty".