74675339891642 has 16 divisors (see below), whose sum is σ = 128095028016000. Its totient is φ = 31983677188848.

The previous prime is 74675339891641. The next prime is 74675339891671. The reversal of 74675339891642 is 24619893357647.

It is a self number, because there is not a number n which added to its sum of digits gives 74675339891642.

It is not an unprimeable number, because it can be changed into a prime (74675339891641) 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, 1669969142 + ... + 1670013857.

It is an arithmetic number, because the mean of its divisors is an integer number (8005939251000).

Almost surely, 2^{74675339891642} is an apocalyptic number.

74675339891642 is a deficient number, since it is larger than the sum of its proper divisors (53419688124358).

74675339891642 is a wasteful number, since it uses less digits than its factorization.

74675339891642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339984605.

The product of its digits is 1646023680, while the sum is 74.

The spelling of 74675339891642 in words is "seventy-four trillion, six hundred seventy-five billion, three hundred thirty-nine million, eight hundred ninety-one thousand, six hundred forty-two".