91940442551435 has 8 divisors (see below), whose sum is σ = 116818444653696. Its totient is φ = 69225744979840.

The previous prime is 91940442551423. The next prime is 91940442551443. The reversal of 91940442551435 is 53415524404919.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91940442551435 - 2²⁶ = 91940375442571 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540826132571 + ... + 540826132740.

It is an arithmetic number, because the mean of its divisors is an integer number (14602305581712).

Almost surely, 2^{91940442551435} is an apocalyptic number.

91940442551435 is a deficient number, since it is larger than the sum of its proper divisors (24878002102261).

91940442551435 is a wasteful number, since it uses less digits than its factorization.

91940442551435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081652265333.

The product of its (nonzero) digits is 15552000, while the sum is 56.

The spelling of 91940442551435 in words is "ninety-one trillion, nine hundred forty billion, four hundred forty-two million, five hundred fifty-one thousand, four hundred thirty-five".