623131172471 has 4 divisors (see below), whose sum is σ = 623324875152. Its totient is φ = 622937469792.

The previous prime is 623131172459. The next prime is 623131172497. The reversal of 623131172471 is 174271131326.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623131172471 is a prime.

It is a super-3 number, since 3×623131172471³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623131172401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96846515 + ... + 96852948.

It is an arithmetic number, because the mean of its divisors is an integer number (155831218788).

Almost surely, 2^623131172471 is an apocalyptic number.

623131172471 is a deficient number, since it is larger than the sum of its proper divisors (193702681).

623131172471 is a wasteful number, since it uses less digits than its factorization.

623131172471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193702680.

The product of its digits is 42336, while the sum is 38.

The spelling of 623131172471 in words is "six hundred twenty-three billion, one hundred thirty-one million, one hundred seventy-two thousand, four hundred seventy-one".