80938000651 has 4 divisors (see below), whose sum is σ = 80961188904. Its totient is φ = 80914812400.

The previous prime is 80938000589. The next prime is 80938000667. The reversal of 80938000651 is 15600083908.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80938000651 - 2¹³ = 80937992459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80938000681) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11588890 + ... + 11595871.

It is an arithmetic number, because the mean of its divisors is an integer number (20240297226).

Almost surely, 2^80938000651 is an apocalyptic number.

80938000651 is the 127231-st centered decagonal number.

80938000651 is a deficient number, since it is larger than the sum of its proper divisors (23188253).

80938000651 is a wasteful number, since it uses less digits than its factorization.

80938000651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23188252.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 80938000651 in words is "eighty billion, nine hundred thirty-eight million, six hundred fifty-one", and thus it is an aban number.