80128454562 has 48 divisors (see below), whose sum is σ = 187467848568. Its totient is φ = 24588783360.

The previous prime is 80128454507. The next prime is 80128454569. The reversal of 80128454562 is 26545482108.

80128454562 is a `hidden beast` number, since 8 + 0 + 1 + 2 + 84 + 5 + 4 + 562 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 56051036001 + 24077418561 = 236751^2 + 155169^2 .

It is a super-2 number, since 2×80128454562² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (80128454569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 371739 + ... + 546302.

Almost surely, 2^80128454562 is an apocalyptic number.

80128454562 is an abundant number, since it is smaller than the sum of its proper divisors (107339394006).

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

80128454562 is a wasteful number, since it uses less digits than its factorization.

80128454562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918435 (or 918432 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 80128454562 in words is "eighty billion, one hundred twenty-eight million, four hundred fifty-four thousand, five hundred sixty-two".