20970376919 has 8 divisors (see below), whose sum is σ = 21130556160. Its totient is φ = 20810331000.

The previous prime is 20970376913. The next prime is 20970376981. The reversal of 20970376919 is 91967307902.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20970376919 - 2¹² = 20970372823 is a prime.

It is a super-2 number, since 2×20970376919² (a number of 21 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 (20970376913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294704 + ... + 358874.

It is an arithmetic number, because the mean of its divisors is an integer number (2641319520).

Almost surely, 2^20970376919 is an apocalyptic number.

20970376919 is a deficient number, since it is larger than the sum of its proper divisors (160179241).

20970376919 is a wasteful number, since it uses less digits than its factorization.

20970376919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66661.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The spelling of 20970376919 in words is "twenty billion, nine hundred seventy million, three hundred seventy-six thousand, nine hundred nineteen".