74370774438 has 24 divisors (see below), whose sum is σ = 161186278968. Its totient is φ = 24782627232.

The previous prime is 74370774437. The next prime is 74370774461. The reversal of 74370774438 is 83447707347.

It is a happy number.

74370774438 is a `hidden beast` number, since 74 + 3 + 70 + 7 + 74 + 438 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74370774433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575656 + ... + 692907.

It is an arithmetic number, because the mean of its divisors is an integer number (6716094957).

Almost surely, 2^74370774438 is an apocalyptic number.

74370774438 is an abundant number, since it is smaller than the sum of its proper divisors (86815504530).

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

74370774438 is a wasteful number, since it uses less digits than its factorization.

74370774438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271828 (or 1271825 counting only the distinct ones).

The product of its (nonzero) digits is 11063808, while the sum is 54.

The spelling of 74370774438 in words is "seventy-four billion, three hundred seventy million, seven hundred seventy-four thousand, four hundred thirty-eight".