89687049870 has 32 divisors (see below), whose sum is σ = 234817004160. Its totient is φ = 21742315040.

The previous prime is 89687049847. The next prime is 89687049883. The reversal of 89687049870 is 7894078698.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135889140 + ... + 135889799.

It is an arithmetic number, because the mean of its divisors is an integer number (7338031380).

Almost surely, 2^89687049870 is an apocalyptic number.

89687049870 is an abundant number, since it is smaller than the sum of its proper divisors (145129954290).

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

89687049870 is a wasteful number, since it uses less digits than its factorization.

89687049870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271778960.

The product of its (nonzero) digits is 48771072, while the sum is 66.

The spelling of 89687049870 in words is "eighty-nine billion, six hundred eighty-seven million, forty-nine thousand, eight hundred seventy".