4153987971 has 24 divisors (see below), whose sum is σ = 6879042144. Its totient is φ = 2366208000.

The previous prime is 4153987969. The next prime is 4153987973. The reversal of 4153987971 is 1797893514.

It is a happy number.

4153987971 is a `hidden beast` number, since 415 + 3 + 98 + 79 + 71 = 666.

It is an interprime number because it is at equal distance from previous prime (4153987969) and next prime (4153987973).

It is not a de Polignac number, because 4153987971 - 2¹ = 4153987969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4153987973) 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, 84030 + ... + 123971.

It is an arithmetic number, because the mean of its divisors is an integer number (286626756).

Almost surely, 2^4153987971 is an apocalyptic number.

4153987971 is a deficient number, since it is larger than the sum of its proper divisors (2725054173).

4153987971 is a wasteful number, since it uses less digits than its factorization.

4153987971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208331 (or 208328 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 4153987971 is about 64451.4388590356. The cubic root of 4153987971 is about 1607.5151632427.

The spelling of 4153987971 in words is "four billion, one hundred fifty-three million, nine hundred eighty-seven thousand, nine hundred seventy-one".