63243061725 has 24 divisors (see below), whose sum is σ = 104640822400. Its totient is φ = 33704161920.

The previous prime is 63243061723. The next prime is 63243061727. The reversal of 63243061725 is 52716034236.

It is an interprime number because it is at equal distance from previous prime (63243061723) and next prime (63243061727).

It is not a de Polignac number, because 63243061725 - 2¹ = 63243061723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63243061723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218200 + ... + 417249.

Almost surely, 2^63243061725 is an apocalyptic number.

It is an amenable number.

63243061725 is a deficient number, since it is larger than the sum of its proper divisors (41397760675).

63243061725 is a wasteful number, since it uses less digits than its factorization.

63243061725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636789 (or 636784 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 63243061725 in words is "sixty-three billion, two hundred forty-three million, sixty-one thousand, seven hundred twenty-five".