1969920001 has 8 divisors (see below), whose sum is σ = 2297283200. Its totient is φ = 1688502564.

The previous prime is 1969919983. The next prime is 1969920013. The reversal of 1969920001 is 1000299691.

It is not a de Polignac number, because 1969920001 - 2¹³ = 1969911809 is a prime.

It is a super-3 number, since 3×1969920001³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1969924001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2871261 + ... + 2871946.

It is an arithmetic number, because the mean of its divisors is an integer number (287160400).

Almost surely, 2^1969920001 is an apocalyptic number.

It is an amenable number.

1969920001 is a deficient number, since it is larger than the sum of its proper divisors (327363199).

1969920001 is an frugal number, since it uses more digits than its factorization.

1969920001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743228 (or 5743214 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 1969920001 is about 44383.7808326420. The cubic root of 1969920001 is about 1253.5727123989.

The spelling of 1969920001 in words is "one billion, nine hundred sixty-nine million, nine hundred twenty thousand, one".