8471021512 has 8 divisors (see below), whose sum is σ = 15883165350. Its totient is φ = 4235510752.

The previous prime is 8471021483. The next prime is 8471021557. The reversal of 8471021512 is 2151201748.

It can be written as a sum of positive squares in only one way, i.e., 7880823076 + 590198436 = 88774^2 + 24294^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8471021512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529438837 + ... + 529438852.

Almost surely, 2^8471021512 is an apocalyptic number.

It is an amenable number.

8471021512 is a deficient number, since it is larger than the sum of its proper divisors (7412143838).

8471021512 is a wasteful number, since it uses less digits than its factorization.

8471021512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058877695 (or 1058877691 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 8471021512 is about 92038.1524803709. The cubic root of 8471021512 is about 2038.5056908900.

The spelling of 8471021512 in words is "eight billion, four hundred seventy-one million, twenty-one thousand, five hundred twelve".