2372784521 has 2 divisors, whose sum is σ = 2372784522. Its totient is φ = 2372784520.

The previous prime is 2372784517. The next prime is 2372784523. The reversal of 2372784521 is 1254872732.

2372784521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2270046025 + 102738496 = 47645^2 + 10136^2 .

It is a cyclic number.

It is not a de Polignac number, because 2372784521 - 2² = 2372784517 is a prime.

Together with 2372784523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2372784523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1186392260 + 1186392261.

It is an arithmetic number, because the mean of its divisors is an integer number (1186392261).

Almost surely, 2^2372784521 is an apocalyptic number.

It is an amenable number.

2372784521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2372784521 is an equidigital number, since it uses as much as digits as its factorization.

2372784521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 41.

The square root of 2372784521 is about 48711.2360857328. The cubic root of 2372784521 is about 1333.7858329921.

The spelling of 2372784521 in words is "two billion, three hundred seventy-two million, seven hundred eighty-four thousand, five hundred twenty-one".