8029921519971 has 24 divisors (see below), whose sum is σ = 12726668079216. Its totient is φ = 4848254498880.

The previous prime is 8029921519931. The next prime is 8029921519979. The reversal of 8029921519971 is 1799151299208.

8029921519971 is a `hidden beast` number, since 8 + 0 + 2 + 9 + 9 + 21 + 519 + 97 + 1 = 666.

It is not a de Polignac number, because 8029921519971 - 2²² = 8029917325667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8029921519899 and 8029921519908.

It is not an unprimeable number, because it can be changed into a prime (8029921519979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 647463685 + ... + 647476086.

It is an arithmetic number, because the mean of its divisors is an integer number (530277836634).

Almost surely, 2^{8029921519971} is an apocalyptic number.

8029921519971 is a deficient number, since it is larger than the sum of its proper divisors (4696746559245).

8029921519971 is a wasteful number, since it uses less digits than its factorization.

8029921519971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294939843 (or 1294939840 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 63.

The spelling of 8029921519971 in words is "eight trillion, twenty-nine billion, nine hundred twenty-one million, five hundred nineteen thousand, nine hundred seventy-one".