87839274871 has 16 divisors (see below), whose sum is σ = 89732916000. Its totient is φ = 85959819648.

The previous prime is 87839274811. The next prime is 87839274883. The reversal of 87839274871 is 17847293878.

It is a cyclic number.

It is not a de Polignac number, because 87839274871 - 2⁹ = 87839274359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87839274811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19307305 + ... + 19311853.

It is an arithmetic number, because the mean of its divisors is an integer number (5608307250).

Almost surely, 2^87839274871 is an apocalyptic number.

87839274871 is a deficient number, since it is larger than the sum of its proper divisors (1893641129).

87839274871 is a wasteful number, since it uses less digits than its factorization.

87839274871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018.

The product of its digits is 37933056, while the sum is 64.

The spelling of 87839274871 in words is "eighty-seven billion, eight hundred thirty-nine million, two hundred seventy-four thousand, eight hundred seventy-one".