90419769287 has 4 divisors (see below), whose sum is σ = 90515250456. Its totient is φ = 90324288120.

The previous prime is 90419769263. The next prime is 90419769289. The reversal of 90419769287 is 78296791409.

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 90419769287 - 2¹⁴ = 90419752903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90419769289) 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, 47739164 + ... + 47741057.

It is an arithmetic number, because the mean of its divisors is an integer number (22628812614).

Almost surely, 2^90419769287 is an apocalyptic number.

90419769287 is a deficient number, since it is larger than the sum of its proper divisors (95481169).

90419769287 is an equidigital number, since it uses as much as digits as its factorization.

90419769287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95481168.

The product of its (nonzero) digits is 13716864, while the sum is 62.

The spelling of 90419769287 in words is "ninety billion, four hundred nineteen million, seven hundred sixty-nine thousand, two hundred eighty-seven".