74089371896649 has 16 divisors (see below), whose sum is σ = 109769739393600. Its totient is φ = 49389446468448.

The previous prime is 74089371896623. The next prime is 74089371896731. The reversal of 74089371896649 is 94669817398047.

74089371896649 is a `hidden beast` number, since 7 + 40 + 89 + 371 + 8 + 96 + 6 + 49 = 666.

It is not a de Polignac number, because 74089371896649 - 2¹³ = 74089371888457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74089371896249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95945244 + ... + 96714365.

It is an arithmetic number, because the mean of its divisors is an integer number (6860608712100).

Almost surely, 2^{74089371896649} is an apocalyptic number.

It is an amenable number.

74089371896649 is a deficient number, since it is larger than the sum of its proper divisors (35680367496951).

74089371896649 is a wasteful number, since it uses less digits than its factorization.

74089371896649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192673861 (or 192673855 counting only the distinct ones).

The product of its (nonzero) digits is 3950456832, while the sum is 81.

The spelling of 74089371896649 in words is "seventy-four trillion, eighty-nine billion, three hundred seventy-one million, eight hundred ninety-six thousand, six hundred forty-nine".