91226034040 has 16 divisors (see below), whose sum is σ = 205258576680. Its totient is φ = 36490413600.

The previous prime is 91226034023. The next prime is 91226034079. The reversal of 91226034040 is 4043062219.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 91226033993 and 91226034011.

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, 1140325386 + ... + 1140325465.

Almost surely, 2^91226034040 is an apocalyptic number.

It is an amenable number.

91226034040 is an abundant number, since it is smaller than the sum of its proper divisors (114032542640).

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

91226034040 is a wasteful number, since it uses less digits than its factorization.

91226034040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280650862 (or 2280650858 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 91226034040 its reverse (4043062219), we get a palindrome (95269096259).

The spelling of 91226034040 in words is "ninety-one billion, two hundred twenty-six million, thirty-four thousand, forty".