78050138 has 8 divisors (see below), whose sum is σ = 123237120. Its totient is φ = 36971100.

The previous prime is 78050113. The next prime is 78050143. The reversal of 78050138 is 83105087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026938 + ... + 1027013.

It is an arithmetic number, because the mean of its divisors is an integer number (15404640).

Almost surely, 2^78050138 is an apocalyptic number.

78050138 is a deficient number, since it is larger than the sum of its proper divisors (45186982).

78050138 is a wasteful number, since it uses less digits than its factorization.

78050138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053972.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 78050138 is about 8834.5989156271. The cubic root of 78050138 is about 427.3573966642.

The spelling of 78050138 in words is "seventy-eight million, fifty thousand, one hundred thirty-eight".