4019215977493 has 2 divisors, whose sum is σ = 4019215977494. Its totient is φ = 4019215977492.

The previous prime is 4019215977481. The next prime is 4019215977509. The reversal of 4019215977493 is 3947795129104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3024006227089 + 995209750404 = 1738967^2 + 997602^2 .

It is a cyclic number.

It is not a de Polignac number, because 4019215977493 - 2¹⁷ = 4019215846421 is a prime.

It is a super-2 number, since 2×4019215977493² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4019215975493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2009607988746 + 2009607988747.

It is an arithmetic number, because the mean of its divisors is an integer number (2009607988747).

Almost surely, 2^{4019215977493} is an apocalyptic number.

It is an amenable number.

4019215977493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4019215977493 is an equidigital number, since it uses as much as digits as its factorization.

4019215977493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17146080, while the sum is 61.

The spelling of 4019215977493 in words is "four trillion, nineteen billion, two hundred fifteen million, nine hundred seventy-seven thousand, four hundred ninety-three".