1421922597947 has 2 divisors, whose sum is σ = 1421922597948. Its totient is φ = 1421922597946.

The previous prime is 1421922597917. The next prime is 1421922598007. The reversal of 1421922597947 is 7497952291241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421922597947 - 2¹⁶ = 1421922532411 is a prime.

It is a super-2 number, since 2×1421922597947² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1421922597947.

It is not a weakly prime, because it can be changed into another prime (1421922597917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710961298973 + 710961298974.

It is an arithmetic number, because the mean of its divisors is an integer number (710961298974).

Almost surely, 2^{1421922597947} is an apocalyptic number.

1421922597947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421922597947 is an equidigital number, since it uses as much as digits as its factorization.

1421922597947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 62.

The spelling of 1421922597947 in words is "one trillion, four hundred twenty-one billion, nine hundred twenty-two million, five hundred ninety-seven thousand, nine hundred forty-seven".