71938414942 has 32 divisors (see below), whose sum is σ = 114421507200. Its totient is φ = 33862764768.

The previous prime is 71938414883. The next prime is 71938414949. The reversal of 71938414942 is 24941483917.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71938414942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71938414949) 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, 1439409 + ... + 1488547.

It is an arithmetic number, because the mean of its divisors is an integer number (3575672100).

Almost surely, 2^71938414942 is an apocalyptic number.

71938414942 is a deficient number, since it is larger than the sum of its proper divisors (42483092258).

71938414942 is a wasteful number, since it uses less digits than its factorization.

71938414942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49800.

The product of its digits is 1741824, while the sum is 52.

The spelling of 71938414942 in words is "seventy-one billion, nine hundred thirty-eight million, four hundred fourteen thousand, nine hundred forty-two".