87070434971718 has 32 divisors (see below), whose sum is σ = 201146673306240. Its totient is φ = 24832922629760.

The previous prime is 87070434971711. The next prime is 87070434971719. The reversal of 87070434971718 is 81717943407078.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 38801440488 + ... + 38801442731.

It is an arithmetic number, because the mean of its divisors is an integer number (6285833540820).

Almost surely, 2^{87070434971718} is an apocalyptic number.

87070434971718 is an abundant number, since it is smaller than the sum of its proper divisors (114076238334522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87070434971718 is a wasteful number, since it uses less digits than its factorization.

87070434971718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77602883252.

The product of its (nonzero) digits is 66382848, while the sum is 66.

The spelling of 87070434971718 in words is "eighty-seven trillion, seventy billion, four hundred thirty-four million, nine hundred seventy-one thousand, seven hundred eighteen".