63781742 has 8 divisors (see below), whose sum is σ = 95823336. Its totient is φ = 31840632.

The previous prime is 63781733. The next prime is 63781769. The reversal of 63781742 is 24718736.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×63781742² = 8136221225109128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63781696 and 63781705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23513 + ... + 26084.

It is an arithmetic number, because the mean of its divisors is an integer number (11977917).

Almost surely, 2^63781742 is an apocalyptic number.

63781742 is a deficient number, since it is larger than the sum of its proper divisors (32041594).

63781742 is a wasteful number, since it uses less digits than its factorization.

63781742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50242.

The product of its digits is 56448, while the sum is 38.

The square root of 63781742 is about 7986.3472251086. The cubic root of 63781742 is about 399.5447779621.

The spelling of 63781742 in words is "sixty-three million, seven hundred eighty-one thousand, seven hundred forty-two".