91969228746 has 24 divisors (see below), whose sum is σ = 200379890880. Its totient is φ = 30485143656.

The previous prime is 91969228717. The next prime is 91969228789. The reversal of 91969228746 is 64782296919.

It is a super-3 number, since 3×91969228746³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14268850 + ... + 14275293.

It is an arithmetic number, because the mean of its divisors is an integer number (8349162120).

Almost surely, 2^91969228746 is an apocalyptic number.

91969228746 is an abundant number, since it is smaller than the sum of its proper divisors (108410662134).

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

91969228746 is a wasteful number, since it uses less digits than its factorization.

91969228746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28544330 (or 28544327 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The spelling of 91969228746 in words is "ninety-one billion, nine hundred sixty-nine million, two hundred twenty-eight thousand, seven hundred forty-six".