80507000745 has 96 divisors (see below), whose sum is σ = 144596653344. Its totient is φ = 41405644800.

The previous prime is 80507000741. The next prime is 80507000779. The reversal of 80507000745 is 54700070508.

80507000745 is a `hidden beast` number, since 80 + 507 + 0 + 0 + 0 + 74 + 5 = 666.

80507000745 is a nontrivial binomial coefficient, being equal to C(401266, 2).

It can be written as a sum of positive squares in 16 ways, for example, as 3926400921 + 76580599824 = 62661^2 + 276732^2 .

It is not a de Polignac number, because 80507000745 - 2² = 80507000741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80507000741) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 125595625 + ... + 125596265.

It is an arithmetic number, because the mean of its divisors is an integer number (1506215139).

Almost surely, 2^80507000745 is an apocalyptic number.

80507000745 is the 401265-th triangular number and also the 200633-rd hexagonal number.

It is an amenable number.

80507000745 is a deficient number, since it is larger than the sum of its proper divisors (64089652599).

80507000745 is a wasteful number, since it uses less digits than its factorization.

80507000745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 80507000745 in words is "eighty billion, five hundred seven million, seven hundred forty-five", and thus it is an aban number.