80007280649 has 16 divisors (see below), whose sum is σ = 85281880320. Its totient is φ = 74953607040.

The previous prime is 80007280631. The next prime is 80007280657. The reversal of 80007280649 is 94608270008.

It is a cyclic number.

It is not a de Polignac number, because 80007280649 - 2²⁰ = 80006232073 is a prime.

It is a super-2 number, since 2×80007280649² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80007280609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289559 + ... + 493820.

It is an arithmetic number, because the mean of its divisors is an integer number (5330117520).

Almost surely, 2^80007280649 is an apocalyptic number.

It is an amenable number.

80007280649 is a deficient number, since it is larger than the sum of its proper divisors (5274599671).

80007280649 is a wasteful number, since it uses less digits than its factorization.

80007280649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783520.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 80007280649 in words is "eighty billion, seven million, two hundred eighty thousand, six hundred forty-nine".