801880078480 has 40 divisors (see below), whose sum is σ = 2007784352952. Its totient is φ = 296078797824.

The previous prime is 801880078471. The next prime is 801880078529. The reversal of 801880078480 is 84870088108.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11324365056 + 790555713424 = 106416^2 + 889132^2 .

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

It is a super-2 number, since 2×801880078480² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 385518229 + ... + 385520308.

Almost surely, 2^801880078480 is an apocalyptic number.

801880078480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

801880078480 is an abundant number, since it is smaller than the sum of its proper divisors (1205904274472).

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

801880078480 is a wasteful number, since it uses less digits than its factorization.

801880078480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771038563 (or 771038557 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 52.

The spelling of 801880078480 in words is "eight hundred one billion, eight hundred eighty million, seventy-eight thousand, four hundred eighty".