7421125380 has 24 divisors (see below), whose sum is σ = 20779151232. Its totient is φ = 1978966752.

The previous prime is 7421125343. The next prime is 7421125381. The reversal of 7421125380 is 835211247.

It is not an unprimeable number, because it can be changed into a prime (7421125381) 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, 61842652 + ... + 61842771.

It is an arithmetic number, because the mean of its divisors is an integer number (865797968).

Almost surely, 2^7421125380 is an apocalyptic number.

It is an amenable number.

7421125380 is an abundant number, since it is smaller than the sum of its proper divisors (13358025852).

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

7421125380 is a wasteful number, since it uses less digits than its factorization.

7421125380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123685435 (or 123685433 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 7421125380 is about 86145.9539386500. The cubic root of 7421125380 is about 1950.5477645905.

The spelling of 7421125380 in words is "seven billion, four hundred twenty-one million, one hundred twenty-five thousand, three hundred eighty".