80945865474 has 16 divisors (see below), whose sum is σ = 161994277920. Its totient is φ = 26964864000.

The previous prime is 80945865463. The next prime is 80945865487. The reversal of 80945865474 is 47456854908.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4262527 + ... + 4281474.

It is an arithmetic number, because the mean of its divisors is an integer number (10124642370).

Almost surely, 2^80945865474 is an apocalyptic number.

80945865474 is an abundant number, since it is smaller than the sum of its proper divisors (81048412446).

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

80945865474 is a wasteful number, since it uses less digits than its factorization.

80945865474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8545585.

The product of its (nonzero) digits is 38707200, while the sum is 60.

The spelling of 80945865474 in words is "eighty billion, nine hundred forty-five million, eight hundred sixty-five thousand, four hundred seventy-four".