74040449064975 has 144 divisors (see below), whose sum is σ = 138612200126400. Its totient is φ = 37732651407360.

The previous prime is 74040449064949. The next prime is 74040449065103. The reversal of 74040449064975 is 57946094404047.

74040449064975 is a `hidden beast` number, since 7 + 4 + 0 + 40 + 449 + 0 + 64 + 97 + 5 = 666.

It is a Cunningham number, because it is equal to 8604676²-1.

It is not a de Polignac number, because 74040449064975 - 2⁵ = 74040449064943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 249387219 + ... + 249683931.

It is an arithmetic number, because the mean of its divisors is an integer number (962584723100).

Almost surely, 2^{74040449064975} is an apocalyptic number.

74040449064975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

74040449064975 is a deficient number, since it is larger than the sum of its proper divisors (64571751061425).

74040449064975 is a wasteful number, since it uses less digits than its factorization.

74040449064975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297154 (or 297146 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 63.

The spelling of 74040449064975 in words is "seventy-four trillion, forty billion, four hundred forty-nine million, sixty-four thousand, nine hundred seventy-five".