1672420546619 has 2 divisors, whose sum is σ = 1672420546620. Its totient is φ = 1672420546618.

The previous prime is 1672420546591. The next prime is 1672420546639. The reversal of 1672420546619 is 9166450242761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1672420546619 - 2²⁴ = 1672403769403 is a prime.

It is a super-2 number, since 2×1672420546619² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1672420546639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836210273309 + 836210273310.

It is an arithmetic number, because the mean of its divisors is an integer number (836210273310).

Almost surely, 2^{1672420546619} is an apocalyptic number.

1672420546619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672420546619 is an equidigital number, since it uses as much as digits as its factorization.

1672420546619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 1672420546619 in words is "one trillion, six hundred seventy-two billion, four hundred twenty million, five hundred forty-six thousand, six hundred nineteen".