80917189546 has 16 divisors (see below), whose sum is σ = 124280327808. Its totient is φ = 39501478800.

The previous prime is 80917189517. The next prime is 80917189559. The reversal of 80917189546 is 64598171908.

It is a super-2 number, since 2×80917189546² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2751585 + ... + 2780836.

It is an arithmetic number, because the mean of its divisors is an integer number (7767520488).

Almost surely, 2^80917189546 is an apocalyptic number.

80917189546 is a deficient number, since it is larger than the sum of its proper divisors (43363138262).

80917189546 is a wasteful number, since it uses less digits than its factorization.

80917189546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532597.

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 80917189546 in words is "eighty billion, nine hundred seventeen million, one hundred eighty-nine thousand, five hundred forty-six".