80019677421 has 12 divisors (see below), whose sum is σ = 117543029760. Its totient is φ = 52442274120.

The previous prime is 80019677389. The next prime is 80019677473. The reversal of 80019677421 is 12477691008.

It is a happy number.

It is not a de Polignac number, because 80019677421 - 2⁵ = 80019677389 is a prime.

It is a super-3 number, since 3×80019677421³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80019677021) 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 11 ways as a sum of consecutive naturals, for example, 75347565 + ... + 75348626.

It is an arithmetic number, because the mean of its divisors is an integer number (9795252480).

Almost surely, 2^80019677421 is an apocalyptic number.

It is an amenable number.

80019677421 is a deficient number, since it is larger than the sum of its proper divisors (37523352339).

80019677421 is a wasteful number, since it uses less digits than its factorization.

80019677421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150696256 (or 150696253 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 80019677421 in words is "eighty billion, nineteen million, six hundred seventy-seven thousand, four hundred twenty-one".