74040040340409 has 64 divisors (see below), whose sum is σ = 118811475836928. Its totient is φ = 40409399923200.

The previous prime is 74040040340363. The next prime is 74040040340411. The reversal of 74040040340409 is 90404304004047.

It is a happy number.

It is not a de Polignac number, because 74040040340409 - 2⁸ = 74040040340153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (74040040340419) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 785882184 + ... + 785976390.

It is an arithmetic number, because the mean of its divisors is an integer number (1856429309952).

Almost surely, 2^{74040040340409} is an apocalyptic number.

It is an amenable number.

74040040340409 is a deficient number, since it is larger than the sum of its proper divisors (44771435496519).

74040040340409 is a wasteful number, since it uses less digits than its factorization.

74040040340409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138958.

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 74040040340409 in words is "seventy-four trillion, forty billion, forty million, three hundred forty thousand, four hundred nine".