84617261788 has 12 divisors (see below), whose sum is σ = 148083742800. Its totient is φ = 42307620992.

The previous prime is 84617261753. The next prime is 84617261791. The reversal of 84617261788 is 88716271648.

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, 45013 + ... + 413836.

It is an arithmetic number, because the mean of its divisors is an integer number (12340311900).

Almost surely, 2^84617261788 is an apocalyptic number.

It is an amenable number.

84617261788 is a deficient number, since it is larger than the sum of its proper divisors (63466481012).

84617261788 is a wasteful number, since it uses less digits than its factorization.

84617261788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504956 (or 504954 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 58.

The spelling of 84617261788 in words is "eighty-four billion, six hundred seventeen million, two hundred sixty-one thousand, seven hundred eighty-eight".