71624981461 has 8 divisors (see below), whose sum is σ = 78634029024. Its totient is φ = 64698881520.

The previous prime is 71624981437. The next prime is 71624981471. The reversal of 71624981461 is 16418942617.

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 71624981461 - 2⁹ = 71624980949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71624981411) 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, 20735095 + ... + 20738548.

It is an arithmetic number, because the mean of its divisors is an integer number (9829253628).

Almost surely, 2^71624981461 is an apocalyptic number.

It is an amenable number.

71624981461 is a deficient number, since it is larger than the sum of its proper divisors (7009047563).

71624981461 is a wasteful number, since it uses less digits than its factorization.

71624981461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41473811.

The product of its digits is 580608, while the sum is 49.

The spelling of 71624981461 in words is "seventy-one billion, six hundred twenty-four million, nine hundred eighty-one thousand, four hundred sixty-one".