91963133946 has 64 divisors (see below), whose sum is σ = 206308477440. Its totient is φ = 30363863040.

The previous prime is 91963133891. The next prime is 91963133987. The reversal of 91963133946 is 64933136919.

It is a super-3 number, since 3×91963133946³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 91963133892 and 91963133901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2409391 + ... + 2447261.

It is an arithmetic number, because the mean of its divisors is an integer number (3223569960).

Almost surely, 2^91963133946 is an apocalyptic number.

91963133946 is an abundant number, since it is smaller than the sum of its proper divisors (114345343494).

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

91963133946 is a wasteful number, since it uses less digits than its factorization.

91963133946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38308 (or 38302 counting only the distinct ones).

The product of its digits is 2834352, while the sum is 54.

The spelling of 91963133946 in words is "ninety-one billion, nine hundred sixty-three million, one hundred thirty-three thousand, nine hundred forty-six".