86620849040 has 40 divisors (see below), whose sum is σ = 219701973888. Its totient is φ = 31498490240.

The previous prime is 86620849019. The next prime is 86620849043. The reversal of 86620849040 is 4094802668.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (86620849043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49215512 + ... + 49217271.

Almost surely, 2^86620849040 is an apocalyptic number.

86620849040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86620849040 is an abundant number, since it is smaller than the sum of its proper divisors (133081124848).

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

86620849040 is a wasteful number, since it uses less digits than its factorization.

86620849040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98432807 (or 98432801 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 86620849040 in words is "eighty-six billion, six hundred twenty million, eight hundred forty-nine thousand, forty".