71602678938 has 128 divisors (see below), whose sum is σ = 172092211200. Its totient is φ = 19842412800.

The previous prime is 71602678933. The next prime is 71602678991. The reversal of 71602678938 is 83987620617.

It is not an unprimeable number, because it can be changed into a prime (71602678933) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10926763 + ... + 10933313.

It is an arithmetic number, because the mean of its divisors is an integer number (1344470400).

Almost surely, 2^71602678938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71602678938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86046105600).

71602678938 is an abundant number, since it is smaller than the sum of its proper divisors (100489532262).

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

71602678938 is a wasteful number, since it uses less digits than its factorization.

71602678938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737 (or 6723 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 71602678938 in words is "seventy-one billion, six hundred two million, six hundred seventy-eight thousand, nine hundred thirty-eight".