80679473280 has 640 divisors, whose sum is σ = 331089454080. Its totient is φ = 18339913728.

The previous prime is 80679473267. The next prime is 80679473293. The reversal of 80679473280 is 8237497608.

80679473280 is a `hidden beast` number, since 80 + 6 + 79 + 473 + 28 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (80679473267) and next prime (80679473293).

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 80921742 + ... + 80922738.

It is an arithmetic number, because the mean of its divisors is an integer number (517327272).

Almost surely, 2^80679473280 is an apocalyptic number.

80679473280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80679473280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165544727040).

80679473280 is an abundant number, since it is smaller than the sum of its proper divisors (250409980800).

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

80679473280 is a wasteful number, since it uses less digits than its factorization.

80679473280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 80679473280 in words is "eighty billion, six hundred seventy-nine million, four hundred seventy-three thousand, two hundred eighty".