80011000378 has 32 divisors (see below), whose sum is σ = 128516347008. Its totient is φ = 37226342400.

The previous prime is 80011000369. The next prime is 80011000393. The reversal of 80011000378 is 87300011008.

It is a happy number.

80011000378 is a nontrivial binomial coefficient, being equal to C(400028, 2).

It is a super-2 number, since 2×80011000378² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3388473 + ... + 3412003.

It is an arithmetic number, because the mean of its divisors is an integer number (4016135844).

Almost surely, 2^80011000378 is an apocalyptic number.

80011000378 is the 400027-th triangular number and also the 200014-th hexagonal number.

80011000378 is the 133343-rd centered nonagonal number.

80011000378 is a deficient number, since it is larger than the sum of its proper divisors (48505346630).

80011000378 is a wasteful number, since it uses less digits than its factorization.

80011000378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24678.

The product of its (nonzero) digits is 1344, while the sum is 28.

The spelling of 80011000378 in words is "eighty billion, eleven million, three hundred seventy-eight", and thus it is an aban number.