74850778385145 has 48 divisors (see below), whose sum is σ = 148277541240192. Its totient is φ = 34217103248640.

The previous prime is 74850778385107. The next prime is 74850778385167. The reversal of 74850778385145 is 54158387705847.

74850778385145 is a `hidden beast` number, since 7 + 4 + 8 + 5 + 0 + 7 + 78 + 38 + 514 + 5 = 666.

It is not a de Polignac number, because 74850778385145 - 2⁶ = 74850778385081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26846205 + ... + 29502885.

It is an arithmetic number, because the mean of its divisors is an integer number (3089115442504).

Almost surely, 2^{74850778385145} is an apocalyptic number.

It is an amenable number.

74850778385145 is a deficient number, since it is larger than the sum of its proper divisors (73426762855047).

74850778385145 is a wasteful number, since it uses less digits than its factorization.

74850778385145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746142 (or 2746139 counting only the distinct ones).

The product of its (nonzero) digits is 1053696000, while the sum is 72.

The spelling of 74850778385145 in words is "seventy-four trillion, eight hundred fifty billion, seven hundred seventy-eight million, three hundred eighty-five thousand, one hundred forty-five".