74240036644 has 12 divisors (see below), whose sum is σ = 130015113984. Its totient is φ = 37092861224.

The previous prime is 74240036603. The next prime is 74240036653. The reversal of 74240036644 is 44663004247.

It is a junction number, because it is equal to n+sod(n) for n = 74240036597 and 74240036606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6783124 + ... + 6794059.

It is an arithmetic number, because the mean of its divisors is an integer number (10834592832).

Almost surely, 2^74240036644 is an apocalyptic number.

It is an amenable number.

74240036644 is a deficient number, since it is larger than the sum of its proper divisors (55775077340).

74240036644 is a wasteful number, since it uses less digits than its factorization.

74240036644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13578554 (or 13578552 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 74240036644 in words is "seventy-four billion, two hundred forty million, thirty-six thousand, six hundred forty-four".