87070434971715 has 192 divisors, whose sum is σ = 168250931896320. Its totient is φ = 41365021040640.

The previous prime is 87070434971711. The next prime is 87070434971719. The reversal of 87070434971715 is 51717943407078.

It is a happy number.

87070434971715 is a `hidden beast` number, since 8 + 7 + 0 + 70 + 4 + 3 + 497 + 1 + 71 + 5 = 666.

It is a Cunningham number, because it is equal to 9331154²-1.

It is an interprime number because it is at equal distance from previous prime (87070434971711) and next prime (87070434971719).

It is not a de Polignac number, because 87070434971715 - 2² = 87070434971711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87070434971711) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13016955091 + ... + 13016961779.

It is an arithmetic number, because the mean of its divisors is an integer number (876306936960).

Almost surely, 2^{87070434971715} is an apocalyptic number.

87070434971715 is a deficient number, since it is larger than the sum of its proper divisors (81180496924605).

87070434971715 is a wasteful number, since it uses less digits than its factorization.

87070434971715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674 (or 8671 counting only the distinct ones).

The product of its (nonzero) digits is 41489280, while the sum is 63.

The spelling of 87070434971715 in words is "eighty-seven trillion, seventy billion, four hundred thirty-four million, nine hundred seventy-one thousand, seven hundred fifteen".