63407242555 has 8 divisors (see below), whose sum is σ = 76133538432. Its totient is φ = 50695895808.

The previous prime is 63407242543. The next prime is 63407242603. The reversal of 63407242555 is 55524270436.

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 63407242555 - 2²⁵ = 63373688123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3727947 + ... + 3744916.

It is an arithmetic number, because the mean of its divisors is an integer number (9516692304).

Almost surely, 2^63407242555 is an apocalyptic number.

63407242555 is a deficient number, since it is larger than the sum of its proper divisors (12726295877).

63407242555 is a wasteful number, since it uses less digits than its factorization.

63407242555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7474565.

The product of its (nonzero) digits is 1008000, while the sum is 43.

The spelling of 63407242555 in words is "sixty-three billion, four hundred seven million, two hundred forty-two thousand, five hundred fifty-five".