42780335378 has 16 divisors (see below), whose sum is σ = 70084039104. Its totient is φ = 19423425360.

The previous prime is 42780335371. The next prime is 42780335399. The reversal of 42780335378 is 87353308724.

42780335378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42780335371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089350 + ... + 1127937.

It is an arithmetic number, because the mean of its divisors is an integer number (4380252444).

Almost surely, 2^42780335378 is an apocalyptic number.

42780335378 is a deficient number, since it is larger than the sum of its proper divisors (27303703726).

42780335378 is a wasteful number, since it uses less digits than its factorization.

42780335378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218177.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 42780335378 in words is "forty-two billion, seven hundred eighty million, three hundred thirty-five thousand, three hundred seventy-eight".