242651453631 has 4 divisors (see below), whose sum is σ = 323535271512. Its totient is φ = 161767635752.

The previous prime is 242651453621. The next prime is 242651453633. The reversal of 242651453631 is 136354156242.

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 242651453631 - 2⁶ = 242651453567 is a prime.

It is a super-2 number, since 2×242651453631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242651453633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40441908936 + ... + 40441908941.

It is an arithmetic number, because the mean of its divisors is an integer number (80883817878).

Almost surely, 2^242651453631 is an apocalyptic number.

242651453631 is a deficient number, since it is larger than the sum of its proper divisors (80883817881).

242651453631 is an equidigital number, since it uses as much as digits as its factorization.

242651453631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80883817880.

The product of its digits is 518400, while the sum is 42.

The spelling of 242651453631 in words is "two hundred forty-two billion, six hundred fifty-one million, four hundred fifty-three thousand, six hundred thirty-one".