4090058219521 has 2 divisors, whose sum is σ = 4090058219522. Its totient is φ = 4090058219520.

The previous prime is 4090058219519. The next prime is 4090058219557. The reversal of 4090058219521 is 1259128500904.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3735866599921 + 354191619600 = 1932839^2 + 595140^2 .

It is a cyclic number.

It is not a de Polignac number, because 4090058219521 - 2¹ = 4090058219519 is a prime.

Together with 4090058219519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4090058219581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045029109760 + 2045029109761.

It is an arithmetic number, because the mean of its divisors is an integer number (2045029109761).

Almost surely, 2^{4090058219521} is an apocalyptic number.

It is an amenable number.

4090058219521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4090058219521 is an equidigital number, since it uses as much as digits as its factorization.

4090058219521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 4090058219521 in words is "four trillion, ninety billion, fifty-eight million, two hundred nineteen thousand, five hundred twenty-one".