84387425066 has 32 divisors (see below), whose sum is σ = 150454755840. Its totient is φ = 34743136896.

The previous prime is 84387425041. The next prime is 84387425117. The reversal of 84387425066 is 66052478348.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 84387424999 and 84387425017.

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, 990155 + ... + 1071998.

It is an arithmetic number, because the mean of its divisors is an integer number (4701711120).

Almost surely, 2^84387425066 is an apocalyptic number.

84387425066 is a deficient number, since it is larger than the sum of its proper divisors (66067330774).

84387425066 is a wasteful number, since it uses less digits than its factorization.

84387425066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062278.

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 84387425066 in words is "eighty-four billion, three hundred eighty-seven million, four hundred twenty-five thousand, sixty-six".