80428462644 has 12 divisors (see below), whose sum is σ = 187666412864. Its totient is φ = 26809487544.

The previous prime is 80428462643. The next prime is 80428462651. The reversal of 80428462644 is 44626482408.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 80428462593 and 80428462602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80428462643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3351185932 + ... + 3351185955.

Almost surely, 2^80428462644 is an apocalyptic number.

It is an amenable number.

80428462644 is an abundant number, since it is smaller than the sum of its proper divisors (107237950220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80428462644 is a wasteful number, since it uses less digits than its factorization.

80428462644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702371894 (or 6702371892 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 48.

The spelling of 80428462644 in words is "eighty billion, four hundred twenty-eight million, four hundred sixty-two thousand, six hundred forty-four".