654025652431 has 4 divisors (see below), whose sum is σ = 654506201664. Its totient is φ = 653545103200.

The previous prime is 654025652377. The next prime is 654025652447. The reversal of 654025652431 is 134256520456.

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

It is a cyclic number.

It is not a de Polignac number, because 654025652431 - 2²¹ = 654023555279 is a prime.

It is a super-2 number, since 2×654025652431² (a number of 24 digits) contains 22 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 (654025652461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240272575 + ... + 240275296.

It is an arithmetic number, because the mean of its divisors is an integer number (163626550416).

Almost surely, 2^654025652431 is an apocalyptic number.

654025652431 is a deficient number, since it is larger than the sum of its proper divisors (480549233).

654025652431 is a wasteful number, since it uses less digits than its factorization.

654025652431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480549232.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 654025652431 in words is "six hundred fifty-four billion, twenty-five million, six hundred fifty-two thousand, four hundred thirty-one".