542778152378 has 64 divisors (see below), whose sum is σ = 1059590681856. Its totient is φ = 202383360000.

The previous prime is 542778152327. The next prime is 542778152437. The reversal of 542778152378 is 873251877245.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433223 + ... + 1128378.

It is an arithmetic number, because the mean of its divisors is an integer number (16556104404).

Almost surely, 2^542778152378 is an apocalyptic number.

542778152378 is a deficient number, since it is larger than the sum of its proper divisors (516812529478).

542778152378 is a wasteful number, since it uses less digits than its factorization.

542778152378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561719.

The product of its digits is 26342400, while the sum is 59.

The spelling of 542778152378 in words is "five hundred forty-two billion, seven hundred seventy-eight million, one hundred fifty-two thousand, three hundred seventy-eight".