71890017340 has 24 divisors (see below), whose sum is σ = 151032067200. Its totient is φ = 28744001088.

The previous prime is 71890017319. The next prime is 71890017343. The reversal of 71890017340 is 4371009817.

It is a junction number, because it is equal to n+sod(n) for n = 71890017293 and 71890017302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71890017343) 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, 701187 + ... + 797146.

It is an arithmetic number, because the mean of its divisors is an integer number (6293002800).

Almost surely, 2^71890017340 is an apocalyptic number.

It is an amenable number.

71890017340 is an abundant number, since it is smaller than the sum of its proper divisors (79142049860).

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

71890017340 is a wasteful number, since it uses less digits than its factorization.

71890017340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500741 (or 1500739 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 71890017340 in words is "seventy-one billion, eight hundred ninety million, seventeen thousand, three hundred forty".