74221445400479 has 8 divisors (see below), whose sum is σ = 82509199850112. Its totient is φ = 66302035593120.

The previous prime is 74221445400383. The next prime is 74221445400481. The reversal of 74221445400479 is 97400454412247.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 74221445400479 - 2¹² = 74221445396383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74221445400479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74221445400779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92086160144 + ... + 92086160949.

It is an arithmetic number, because the mean of its divisors is an integer number (10313649981264).

Almost surely, 2^{74221445400479} is an apocalyptic number.

74221445400479 is a deficient number, since it is larger than the sum of its proper divisors (8287754449633).

74221445400479 is a wasteful number, since it uses less digits than its factorization.

74221445400479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184172321137.

The product of its (nonzero) digits is 9031680, while the sum is 53.

The spelling of 74221445400479 in words is "seventy-four trillion, two hundred twenty-one billion, four hundred forty-five million, four hundred thousand, four hundred seventy-nine".