400421242107619 has 2 divisors, whose sum is σ = 400421242107620. Its totient is φ = 400421242107618.

The previous prime is 400421242107611. The next prime is 400421242107631. The reversal of 400421242107619 is 916701242124004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400421242107619 - 2³ = 400421242107611 is a prime.

It is a super-2 number, since 2×400421242107619² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (400421242107611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200210621053809 + 200210621053810.

It is an arithmetic number, because the mean of its divisors is an integer number (200210621053810).

Almost surely, 2^{400421242107619} is an apocalyptic number.

400421242107619 is a deficient number, since it is larger than the sum of its proper divisors (1).

400421242107619 is an equidigital number, since it uses as much as digits as its factorization.

400421242107619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 400421242107619 in words is "four hundred trillion, four hundred twenty-one billion, two hundred forty-two million, one hundred seven thousand, six hundred nineteen".