80278057750 has 64 divisors (see below), whose sum is σ = 164005171200. Its totient is φ = 29180844000.

The previous prime is 80278057729. The next prime is 80278057759. The reversal of 80278057750 is 5775087208.

It is a happy number.

It is a super-2 number, since 2×80278057750² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80278057694 and 80278057703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80278057759) 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 31 ways as a sum of consecutive naturals, for example, 11433741 + ... + 11440759.

It is an arithmetic number, because the mean of its divisors is an integer number (2562580800).

Almost surely, 2^80278057750 is an apocalyptic number.

80278057750 is an abundant number, since it is smaller than the sum of its proper divisors (83727113450).

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

80278057750 is a wasteful number, since it uses less digits than its factorization.

80278057750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11206 (or 11196 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 49.

The spelling of 80278057750 in words is "eighty billion, two hundred seventy-eight million, fifty-seven thousand, seven hundred fifty".