91010853736 has 24 divisors (see below), whose sum is σ = 187568858610. Its totient is φ = 41368569440.

The previous prime is 91010853733. The next prime is 91010853767. The reversal of 91010853736 is 63735801019.

It can be written as a sum of positive squares in only one way, i.e., 70593301636 + 20417552100 = 265694^2 + 142890^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91010853692 and 91010853701.

It is not an unprimeable number, because it can be changed into a prime (91010853733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47008771 + ... + 47010706.

Almost surely, 2^91010853736 is an apocalyptic number.

It is an amenable number.

91010853736 is an abundant number, since it is smaller than the sum of its proper divisors (96558004874).

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

91010853736 is a wasteful number, since it uses less digits than its factorization.

91010853736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94019505 (or 94019490 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 91010853736 in words is "ninety-one billion, ten million, eight hundred fifty-three thousand, seven hundred thirty-six".