1450197797839 has 4 divisors (see below), whose sum is σ = 1657368911824. Its totient is φ = 1243026683856.

The previous prime is 1450197797833. The next prime is 1450197797843. The reversal of 1450197797839 is 9387977910541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1450197797839 - 2²⁷ = 1450063580111 is a prime.

It is a super-2 number, since 2×1450197797839² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450197797833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103585556982 + ... + 103585556995.

It is an arithmetic number, because the mean of its divisors is an integer number (414342227956).

Almost surely, 2^{1450197797839} is an apocalyptic number.

1450197797839 is a deficient number, since it is larger than the sum of its proper divisors (207171113985).

1450197797839 is an equidigital number, since it uses as much as digits as its factorization.

1450197797839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207171113984.

The product of its (nonzero) digits is 120022560, while the sum is 70.

The spelling of 1450197797839 in words is "one trillion, four hundred fifty billion, one hundred ninety-seven million, seven hundred ninety-seven thousand, eight hundred thirty-nine".