91059636370 has 32 divisors (see below), whose sum is σ = 166068023472. Its totient is φ = 35946473472.

The previous prime is 91059636359. The next prime is 91059636377. The reversal of 91059636370 is 7363695019.

It can be written as a sum of positive squares in 8 ways, for example, as 746764929 + 90312871441 = 27327^2 + 300521^2 .

It is not an unprimeable number, because it can be changed into a prime (91059636377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90364 + ... + 436216.

Almost surely, 2^91059636370 is an apocalyptic number.

91059636370 is a deficient number, since it is larger than the sum of its proper divisors (75008387102).

91059636370 is a wasteful number, since it uses less digits than its factorization.

91059636370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346206.

The product of its (nonzero) digits is 918540, while the sum is 49.

The spelling of 91059636370 in words is "ninety-one billion, fifty-nine million, six hundred thirty-six thousand, three hundred seventy".