75490034974640 has 320 divisors, whose sum is σ = 218375265088512. Its totient is φ = 23875842355200.

The previous prime is 75490034974579. The next prime is 75490034974681. The reversal of 75490034974640 is 4647943009457.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15487970 + ... + 19770110.

Almost surely, 2^{75490034974640} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75490034974640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109187632544256).

75490034974640 is an abundant number, since it is smaller than the sum of its proper divisors (142885230113872).

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

75490034974640 is a wasteful number, since it uses less digits than its factorization.

75490034974640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282268 (or 4282262 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 62.

The spelling of 75490034974640 in words is "seventy-five trillion, four hundred ninety billion, thirty-four million, nine hundred seventy-four thousand, six hundred forty".