90471429480851 has 4 divisors (see below), whose sum is σ = 90476152130352. Its totient is φ = 90466706831352.

The previous prime is 90471429480811. The next prime is 90471429480907. The reversal of 90471429480851 is 15808492417409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90471429480851 - 2²² = 90471425286547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90471429480811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2361296015 + ... + 2361334328.

It is an arithmetic number, because the mean of its divisors is an integer number (22619038032588).

Almost surely, 2^{90471429480851} is an apocalyptic number.

90471429480851 is a deficient number, since it is larger than the sum of its proper divisors (4722649501).

90471429480851 is a wasteful number, since it uses less digits than its factorization.

90471429480851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4722649500.

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 90471429480851 in words is "ninety trillion, four hundred seventy-one billion, four hundred twenty-nine million, four hundred eighty thousand, eight hundred fifty-one".