86940079500 has 96 divisors (see below), whose sum is σ = 253462023360. Its totient is φ = 23157235200.

The previous prime is 86940079493. The next prime is 86940079507. The reversal of 86940079500 is 597004968.

It is an interprime number because it is at equal distance from previous prime (86940079493) and next prime (86940079507).

It is a self number, because there is not a number n which added to its sum of digits gives 86940079500.

It is not an unprimeable number, because it can be changed into a prime (86940079507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1282456 + ... + 1348544.

It is an arithmetic number, because the mean of its divisors is an integer number (2640229410).

Almost surely, 2^86940079500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86940079500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126731011680).

86940079500 is an abundant number, since it is smaller than the sum of its proper divisors (166521943860).

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

86940079500 is a wasteful number, since it uses less digits than its factorization.

86940079500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66988 (or 66976 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 86940079500 in words is "eighty-six billion, nine hundred forty million, seventy-nine thousand, five hundred".