71503971430 has 32 divisors (see below), whose sum is σ = 129284688384. Its totient is φ = 28473440736.

The previous prime is 71503971359. The next prime is 71503971523. The reversal of 71503971430 is 3417930517.

It is a super-2 number, since 2×71503971430² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3110037 + ... + 3132943.

It is an arithmetic number, because the mean of its divisors is an integer number (4040146512).

Almost surely, 2^71503971430 is an apocalyptic number.

71503971430 is a deficient number, since it is larger than the sum of its proper divisors (57780716954).

71503971430 is a wasteful number, since it uses less digits than its factorization.

71503971430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24300.

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 71503971430 in words is "seventy-one billion, five hundred three million, nine hundred seventy-one thousand, four hundred thirty".