7938721470 has 16 divisors (see below), whose sum is σ = 19052931600. Its totient is φ = 2116992384.

The previous prime is 7938721451. The next prime is 7938721477. The reversal of 7938721470 is 741278397.

7938721470 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938721477) 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, 132311995 + ... + 132312054.

It is an arithmetic number, because the mean of its divisors is an integer number (1190808225).

Almost surely, 2^7938721470 is an apocalyptic number.

7938721470 is an abundant number, since it is smaller than the sum of its proper divisors (11114210130).

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

7938721470 is a wasteful number, since it uses less digits than its factorization.

7938721470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264624059.

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 7938721470 is about 89099.5031972682. The cubic root of 7938721470 is about 1994.8803616674.

The spelling of 7938721470 in words is "seven billion, nine hundred thirty-eight million, seven hundred twenty-one thousand, four hundred seventy".