74443907650 has 48 divisors (see below), whose sum is σ = 160153124544. Its totient is φ = 25216102080.

The previous prime is 74443907639. The next prime is 74443907653. The reversal of 74443907650 is 5670934447.

It is a junction number, because it is equal to n+sod(n) for n = 74443907594 and 74443907603.

It is not an unprimeable number, because it can be changed into a prime (74443907653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1252257 + ... + 1310356.

It is an arithmetic number, because the mean of its divisors is an integer number (3336523428).

Almost surely, 2^74443907650 is an apocalyptic number.

74443907650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74443907650 is an abundant number, since it is smaller than the sum of its proper divisors (85709216894).

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

74443907650 is a wasteful number, since it uses less digits than its factorization.

74443907650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562715 (or 2562710 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 74443907650 in words is "seventy-four billion, four hundred forty-three million, nine hundred seven thousand, six hundred fifty".