63742878 has 12 divisors (see below), whose sum is σ = 138109608. Its totient is φ = 21247620.

The previous prime is 63742849. The next prime is 63742879. The reversal of 63742878 is 87824736.

It is a happy number.

63742878 is a `hidden beast` number, since 637 + 4 + 2 + 8 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63742879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1770618 + ... + 1770653.

It is an arithmetic number, because the mean of its divisors is an integer number (11509134).

Almost surely, 2^63742878 is an apocalyptic number.

63742878 is an abundant number, since it is smaller than the sum of its proper divisors (74366730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63742878 is a wasteful number, since it uses less digits than its factorization.

63742878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541279 (or 3541276 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 63742878 is about 7983.9137019384. The cubic root of 63742878 is about 399.4636102031.

It can be divided in two parts, 63742 and 878, that added together give a triangular number (64620 = T₃₅₉).

The spelling of 63742878 in words is "sixty-three million, seven hundred forty-two thousand, eight hundred seventy-eight".