80000499987 has 32 divisors (see below), whose sum is σ = 121858437120. Its totient is φ = 51840648000.

The previous prime is 80000499973. The next prime is 80000500001. The reversal of 80000499987 is 78999400008.

It is an interprime number because it is at equal distance from previous prime (80000499973) and next prime (80000500001).

It is not a de Polignac number, because 80000499987 - 2⁶ = 80000499923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80000495987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166662 + ... + 433332.

It is an arithmetic number, because the mean of its divisors is an integer number (3808076160).

Almost surely, 2^80000499987 is an apocalyptic number.

80000499987 is a deficient number, since it is larger than the sum of its proper divisors (41857937133).

80000499987 is a wasteful number, since it uses less digits than its factorization.

80000499987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266992 (or 266986 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 80000499987 in words is "eighty billion, four hundred ninety-nine thousand, nine hundred eighty-seven".