81300677048 has 16 divisors (see below), whose sum is σ = 152928930960. Its totient is φ = 40519628800.

The previous prime is 81300676993. The next prime is 81300677077. The reversal of 81300677048 is 84077600318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16336073 + ... + 16341048.

It is an arithmetic number, because the mean of its divisors is an integer number (9558058185).

Almost surely, 2^81300677048 is an apocalyptic number.

It is an amenable number.

81300677048 is a deficient number, since it is larger than the sum of its proper divisors (71628253912).

81300677048 is a wasteful number, since it uses less digits than its factorization.

81300677048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32677438 (or 32677434 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 81300677048 in words is "eighty-one billion, three hundred million, six hundred seventy-seven thousand, forty-eight".