91426545940000 has 60 divisors (see below), whose sum is σ = 224923017043494. Its totient is φ = 36570618368000.

The previous prime is 91426545939997. The next prime is 91426545940027. The reversal of 91426545940000 is 4954562419.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 10028546236944 + 81397999703056 = 3166788^2 + 9022084^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2285643649 + ... + 2285683648.

Almost surely, 2^{91426545940000} is an apocalyptic number.

It is an amenable number.

91426545940000 is an abundant number, since it is smaller than the sum of its proper divisors (133496471103494).

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

91426545940000 is an equidigital number, since it uses as much as digits as its factorization.

91426545940000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571327327 (or 4571327304 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 91426545940000 in words is "ninety-one trillion, four hundred twenty-six billion, five hundred forty-five million, nine hundred forty thousand".