74400521746 has 16 divisors (see below), whose sum is σ = 118552262400. Its totient is φ = 34919026128.

The previous prime is 74400521719. The next prime is 74400521749. The reversal of 74400521746 is 64712500447.

It is a junction number, because it is equal to n+sod(n) for n = 74400521699 and 74400521708.

It is not an unprimeable number, because it can be changed into a prime (74400521749) 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, 8977090 + ... + 8985373.

It is an arithmetic number, because the mean of its divisors is an integer number (7409516400).

Almost surely, 2^74400521746 is an apocalyptic number.

74400521746 is a deficient number, since it is larger than the sum of its proper divisors (44151740654).

74400521746 is a wasteful number, since it uses less digits than its factorization.

74400521746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17962593.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 74400521746 in words is "seventy-four billion, four hundred million, five hundred twenty-one thousand, seven hundred forty-six".