75470421340 has 24 divisors (see below), whose sum is σ = 158499421920. Its totient is φ = 30185971008.

The previous prime is 75470421319. The next prime is 75470421347. The reversal of 75470421340 is 4312407457.

It is a self number, because there is not a number n which added to its sum of digits gives 75470421340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75470421347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159966 + ... + 420154.

It is an arithmetic number, because the mean of its divisors is an integer number (6604142580).

Almost surely, 2^75470421340 is an apocalyptic number.

It is an amenable number.

75470421340 is an abundant number, since it is smaller than the sum of its proper divisors (83029000580).

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

75470421340 is a wasteful number, since it uses less digits than its factorization.

75470421340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274701 (or 274699 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

Adding to 75470421340 its reverse (4312407457), we get a palindrome (79782828797).

The spelling of 75470421340 in words is "seventy-five billion, four hundred seventy million, four hundred twenty-one thousand, three hundred forty".