74219155422916 has 81 divisors (see below), whose sum is σ = 152010125490279. Its totient is φ = 31615456248768.

The previous prime is 74219155422887. The next prime is 74219155422947. The reversal of 74219155422916 is 61922455191247.

The square root of 74219155422916 is 8615054.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 202728664516 + 74016426758400 = 450254^2 + 8603280^2 .

It is a super-2 number, since 2×74219155422916² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20865659010 + ... + 20865662566.

Almost surely, 2^{74219155422916} is an apocalyptic number.

74219155422916 is the 8615054-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74219155422916

74219155422916 is an abundant number, since it is smaller than the sum of its proper divisors (77790970067363).

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

74219155422916 is an frugal number, since it uses more digits than its factorization.

74219155422916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7478 (or 3739 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The spelling of 74219155422916 in words is "seventy-four trillion, two hundred nineteen billion, one hundred fifty-five million, four hundred twenty-two thousand, nine hundred sixteen".