371878524421 has 2 divisors, whose sum is σ = 371878524422. Its totient is φ = 371878524420.

The previous prime is 371878524359. The next prime is 371878524481. The reversal of 371878524421 is 124425878173.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371843844100 + 34680321 = 609790^2 + 5889^2 .

It is a cyclic number.

It is not a de Polignac number, because 371878524421 - 2¹⁷ = 371878393349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (371878524481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185939262210 + 185939262211.

It is an arithmetic number, because the mean of its divisors is an integer number (185939262211).

Almost surely, 2^371878524421 is an apocalyptic number.

It is an amenable number.

371878524421 is a deficient number, since it is larger than the sum of its proper divisors (1).

371878524421 is an equidigital number, since it uses as much as digits as its factorization.

371878524421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3010560, while the sum is 52.

The spelling of 371878524421 in words is "three hundred seventy-one billion, eight hundred seventy-eight million, five hundred twenty-four thousand, four hundred twenty-one".