74168353490 has 128 divisors (see below), whose sum is σ = 171887063040. Its totient is φ = 22371552000.

The previous prime is 74168353463. The next prime is 74168353531. The reversal of 74168353490 is 9435386147.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3598715 + ... + 3619265.

It is an arithmetic number, because the mean of its divisors is an integer number (1342867680).

Almost surely, 2^74168353490 is an apocalyptic number.

74168353490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74168353490 is an abundant number, since it is smaller than the sum of its proper divisors (97718709550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74168353490 is a wasteful number, since it uses less digits than its factorization.

74168353490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20728.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 74168353490 in words is "seventy-four billion, one hundred sixty-eight million, three hundred fifty-three thousand, four hundred ninety".