42777887450 has 48 divisors (see below), whose sum is σ = 83055844800. Its totient is φ = 16361368320.

The previous prime is 42777887441. The next prime is 42777887531. The reversal of 42777887450 is 5478877724.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42777887450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4651757 + ... + 4660943.

It is an arithmetic number, because the mean of its divisors is an integer number (1730330100).

Almost surely, 2^42777887450 is an apocalyptic number.

42777887450 is a deficient number, since it is larger than the sum of its proper divisors (40277957350).

42777887450 is a wasteful number, since it uses less digits than its factorization.

42777887450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13271 (or 13266 counting only the distinct ones).

The product of its (nonzero) digits is 24586240, while the sum is 59.

The spelling of 42777887450 in words is "forty-two billion, seven hundred seventy-seven million, eight hundred eighty-seven thousand, four hundred fifty".