86320182640 has 20 divisors (see below), whose sum is σ = 200694424824. Its totient is φ = 34528073024.

The previous prime is 86320182547. The next prime is 86320182649. The reversal of 86320182640 is 4628102368.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 86320182593 and 86320182602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86320182649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539501062 + ... + 539501221.

Almost surely, 2^86320182640 is an apocalyptic number.

86320182640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86320182640 is an abundant number, since it is smaller than the sum of its proper divisors (114374242184).

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

86320182640 is a wasteful number, since it uses less digits than its factorization.

86320182640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079002296 (or 1079002290 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 86320182640 in words is "eighty-six billion, three hundred twenty million, one hundred eighty-two thousand, six hundred forty".