74012508405 has 384 divisors, whose sum is σ = 161270784000. Its totient is φ = 31895285760.

The previous prime is 74012508379. The next prime is 74012508421. The reversal of 74012508405 is 50480521047.

It is not a de Polignac number, because 74012508405 - 2¹³ = 74012500213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74012508405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 936867156 + ... + 936867234.

It is an arithmetic number, because the mean of its divisors is an integer number (419976000).

Almost surely, 2^74012508405 is an apocalyptic number.

It is an amenable number.

74012508405 is an abundant number, since it is smaller than the sum of its proper divisors (87258275595).

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

74012508405 is a wasteful number, since it uses less digits than its factorization.

74012508405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The spelling of 74012508405 in words is "seventy-four billion, twelve million, five hundred eight thousand, four hundred five".