90858519379 has 8 divisors (see below), whose sum is σ = 96320046240. Its totient is φ = 85409982336.

The previous prime is 90858519377. The next prime is 90858519419. The reversal of 90858519379 is 97391585809.

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

It is not a de Polignac number, because 90858519379 - 2¹ = 90858519377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90858519379.

It is not an unprimeable number, because it can be changed into a prime (90858519371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3233044 + ... + 3261025.

It is an arithmetic number, because the mean of its divisors is an integer number (12040005780).

Almost surely, 2^90858519379 is an apocalyptic number.

90858519379 is a deficient number, since it is larger than the sum of its proper divisors (5461526861).

90858519379 is a wasteful number, since it uses less digits than its factorization.

90858519379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494909.

The product of its (nonzero) digits is 24494400, while the sum is 64.

The spelling of 90858519379 in words is "ninety billion, eight hundred fifty-eight million, five hundred nineteen thousand, three hundred seventy-nine".