4019972958769 has 4 divisors (see below), whose sum is σ = 4020056925696. Its totient is φ = 4019888991844.

The previous prime is 4019972958671. The next prime is 4019972958817. The reversal of 4019972958769 is 9678592799104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4019972958769 is a prime.

It is a super-2 number, since 2×4019972958769² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4019972958695 and 4019972958704.

It is not an unprimeable number, because it can be changed into a prime (4019972952769) 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, 41911609 + ... + 42007414.

It is an arithmetic number, because the mean of its divisors is an integer number (1005014231424).

Almost surely, 2^{4019972958769} is an apocalyptic number.

It is an amenable number.

4019972958769 is a deficient number, since it is larger than the sum of its proper divisors (83966927).

4019972958769 is an equidigital number, since it uses as much as digits as its factorization.

4019972958769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83966926.

The product of its (nonzero) digits is 617258880, while the sum is 76.

The spelling of 4019972958769 in words is "four trillion, nineteen billion, nine hundred seventy-two million, nine hundred fifty-eight thousand, seven hundred sixty-nine".