31472516543 has 8 divisors (see below), whose sum is σ = 33987895200. Its totient is φ = 28970625888.

The previous prime is 31472516533. The next prime is 31472516591. The reversal of 31472516543 is 34561527413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31472516543 - 2⁶ = 31472516479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31472516543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31472516533) 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, 3367148 + ... + 3376481.

It is an arithmetic number, because the mean of its divisors is an integer number (4248486900).

Almost surely, 2^31472516543 is an apocalyptic number.

31472516543 is a deficient number, since it is larger than the sum of its proper divisors (2515378657).

31472516543 is a wasteful number, since it uses less digits than its factorization.

31472516543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744001.

The product of its digits is 302400, while the sum is 41.

The spelling of 31472516543 in words is "thirty-one billion, four hundred seventy-two million, five hundred sixteen thousand, five hundred forty-three".