1971596814019 has 16 divisors (see below), whose sum is σ = 2255042840320. Its totient is φ = 1688598485280.

The previous prime is 1971596814013. The next prime is 1971596814059. The reversal of 1971596814019 is 9104186951791.

It is not a de Polignac number, because 1971596814019 - 2⁷ = 1971596813891 is a prime.

It is a super-2 number, since 2×1971596814019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1971596814013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100937284 + ... + 100956814.

It is an arithmetic number, because the mean of its divisors is an integer number (140940177520).

Almost surely, 2^{1971596814019} is an apocalyptic number.

1971596814019 is a deficient number, since it is larger than the sum of its proper divisors (283446026301).

1971596814019 is a wasteful number, since it uses less digits than its factorization.

1971596814019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30250.

The product of its (nonzero) digits is 4898880, while the sum is 61.

The spelling of 1971596814019 in words is "one trillion, nine hundred seventy-one billion, five hundred ninety-six million, eight hundred fourteen thousand, nineteen".