74734437390 has 32 divisors (see below), whose sum is σ = 179488797696. Its totient is φ = 19915166880.

The previous prime is 74734437389. The next prime is 74734437419. The reversal of 74734437390 is 9373443747.

It is a super-2 number, since 2×74734437390² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832626 + ... + 918005.

It is an arithmetic number, because the mean of its divisors is an integer number (5609024928).

Almost surely, 2^74734437390 is an apocalyptic number.

74734437390 is an abundant number, since it is smaller than the sum of its proper divisors (104754360306).

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

74734437390 is a wasteful number, since it uses less digits than its factorization.

74734437390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752064.

The product of its (nonzero) digits is 5334336, while the sum is 51.

The spelling of 74734437390 in words is "seventy-four billion, seven hundred thirty-four million, four hundred thirty-seven thousand, three hundred ninety".