91415371042404 has 60 divisors (see below), whose sum is σ = 247218452365500. Its totient is φ = 29421038953152.

The previous prime is 91415371042343. The next prime is 91415371042427. The reversal of 91415371042404 is 40424017351419.

91415371042404 is a `hidden beast` number, since 9 + 1 + 4 + 1 + 537 + 104 + 2 + 4 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42018398265600 + 49396972776804 = 6482160^2 + 7028298^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91415371042404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4864580379 + ... + 4864599170.

It is an arithmetic number, because the mean of its divisors is an integer number (4120307539425).

Almost surely, 2^{91415371042404} is an apocalyptic number.

It is an amenable number.

91415371042404 is an abundant number, since it is smaller than the sum of its proper divisors (155803081323096).

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

91415371042404 is a wasteful number, since it uses less digits than its factorization.

91415371042404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9729179594 (or 9729179583 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 91415371042404 in words is "ninety-one trillion, four hundred fifteen billion, three hundred seventy-one million, forty-two thousand, four hundred four".