378657777050 has 48 divisors (see below), whose sum is σ = 805063294080. Its totient is φ = 129802128960.

The previous prime is 378657777041. The next prime is 378657777059. The reversal of 378657777050 is 50777756873.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (378657777041) and next prime (378657777059).

It is not an unprimeable number, because it can be changed into a prime (378657777059) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1906331 + ... + 2095569.

It is an arithmetic number, because the mean of its divisors is an integer number (16772151960).

Almost surely, 2^378657777050 is an apocalyptic number.

378657777050 is an abundant number, since it is smaller than the sum of its proper divisors (426405517030).

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

378657777050 is a wasteful number, since it uses less digits than its factorization.

378657777050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194975 (or 194970 counting only the distinct ones).

The product of its (nonzero) digits is 60505200, while the sum is 62.

The spelling of 378657777050 in words is "three hundred seventy-eight billion, six hundred fifty-seven million, seven hundred seventy-seven thousand, fifty".