80403061578 has 32 divisors (see below), whose sum is σ = 191768795136. Its totient is φ = 21973507248.

The previous prime is 80403061561. The next prime is 80403061667. The reversal of 80403061578 is 87516030408.

It is a super-3 number, since 3×80403061578³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41615526 + ... + 41617457.

It is an arithmetic number, because the mean of its divisors is an integer number (5992774848).

Almost surely, 2^80403061578 is an apocalyptic number.

80403061578 is an abundant number, since it is smaller than the sum of its proper divisors (111365733558).

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

80403061578 is a wasteful number, since it uses less digits than its factorization.

80403061578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83233018.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 80403061578 in words is "eighty billion, four hundred three million, sixty-one thousand, five hundred seventy-eight".