74779443254 has 8 divisors (see below), whose sum is σ = 112186636968. Its totient is φ = 37383897600.

The previous prime is 74779443187. The next prime is 74779443259. The reversal of 74779443254 is 45234497747.

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

It is a super-2 number, since 2×74779443254² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74779443254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74779443259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2895947 + ... + 2921654.

It is an arithmetic number, because the mean of its divisors is an integer number (14023329621).

Almost surely, 2^74779443254 is an apocalyptic number.

74779443254 is a deficient number, since it is larger than the sum of its proper divisors (37407193714).

74779443254 is a wasteful number, since it uses less digits than its factorization.

74779443254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824030.

The product of its digits is 23708160, while the sum is 56.

The spelling of 74779443254 in words is "seventy-four billion, seven hundred seventy-nine million, four hundred forty-three thousand, two hundred fifty-four".