91790702036 has 12 divisors (see below), whose sum is σ = 175236794880. Its totient is φ = 41723046360.

The previous prime is 91790702033. The next prime is 91790702041. The reversal of 91790702036 is 63020709719.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 2086152319 = 91790702036 / (9 + 1 + 7 + 9 + 0 + 7 + 0 + 2 + 0 + 3 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91790702033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043076116 + ... + 1043076203.

It is an arithmetic number, because the mean of its divisors is an integer number (14603066240).

Almost surely, 2^91790702036 is an apocalyptic number.

It is an amenable number.

91790702036 is a deficient number, since it is larger than the sum of its proper divisors (83446092844).

91790702036 is a wasteful number, since it uses less digits than its factorization.

91790702036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086152334 (or 2086152332 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 44.

The spelling of 91790702036 in words is "ninety-one billion, seven hundred ninety million, seven hundred two thousand, thirty-six".