63742585471 has 4 divisors (see below), whose sum is σ = 63801227392. Its totient is φ = 63683943552.

The previous prime is 63742585469. The next prime is 63742585493. The reversal of 63742585471 is 17458524736.

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 63742585471 - 2¹ = 63742585469 is a prime.

It is a super-3 number, since 3×63742585471³ (a number of 33 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 (63742580471) 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, 29319330 + ... + 29321503.

It is an arithmetic number, because the mean of its divisors is an integer number (15950306848).

Almost surely, 2^63742585471 is an apocalyptic number.

63742585471 is a deficient number, since it is larger than the sum of its proper divisors (58641921).

63742585471 is a wasteful number, since it uses less digits than its factorization.

63742585471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58641920.

The product of its digits is 5644800, while the sum is 52.

The spelling of 63742585471 in words is "sixty-three billion, seven hundred forty-two million, five hundred eighty-five thousand, four hundred seventy-one".