82278320080 has 40 divisors (see below), whose sum is σ = 208687741344. Its totient is φ = 29919388800.

The previous prime is 82278320071. The next prime is 82278320101. The reversal of 82278320080 is 8002387228.

It is a happy number.

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

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46748166 + ... + 46749925.

Almost surely, 2^82278320080 is an apocalyptic number.

82278320080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82278320080 is an abundant number, since it is smaller than the sum of its proper divisors (126409421264).

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

82278320080 is a wasteful number, since it uses less digits than its factorization.

82278320080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93498115 (or 93498109 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 82278320080 in words is "eighty-two billion, two hundred seventy-eight million, three hundred twenty thousand, eighty".