74820687542 has 8 divisors (see below), whose sum is σ = 112974283632. Its totient is φ = 37162593000.

The previous prime is 74820687541. The next prime is 74820687563. The reversal of 74820687542 is 24578602847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74820687541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123875009 + ... + 123875612.

It is an arithmetic number, because the mean of its divisors is an integer number (14121785454).

Almost surely, 2^74820687542 is an apocalyptic number.

74820687542 is a deficient number, since it is larger than the sum of its proper divisors (38153596090).

74820687542 is a wasteful number, since it uses less digits than its factorization.

74820687542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247750774.

The product of its (nonzero) digits is 6021120, while the sum is 53.

The spelling of 74820687542 in words is "seventy-four billion, eight hundred twenty million, six hundred eighty-seven thousand, five hundred forty-two".