7480693021 has 2 divisors, whose sum is σ = 7480693022. Its totient is φ = 7480693020.

The previous prime is 7480692991. The next prime is 7480693061. The reversal of 7480693021 is 1203960847.

7480693021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (7480693061) can be obtained adding 7480693021 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6923072025 + 557620996 = 83205^2 + 23614^2 .

It is a cyclic number.

It is not a de Polignac number, because 7480693021 - 2²¹ = 7478595869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7480693061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3740346510 + 3740346511.

It is an arithmetic number, because the mean of its divisors is an integer number (3740346511).

Almost surely, 2^7480693021 is an apocalyptic number.

It is an amenable number.

7480693021 is a deficient number, since it is larger than the sum of its proper divisors (1).

7480693021 is an equidigital number, since it uses as much as digits as its factorization.

7480693021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 7480693021 is about 86490.9996531431. Note that the first 3 decimals coincide. The cubic root of 7480693021 is about 1955.7527268466.

The spelling of 7480693021 in words is "seven billion, four hundred eighty million, six hundred ninety-three thousand, twenty-one".