90819639842095 has 8 divisors (see below), whose sum is σ = 108998124228864. Its totient is φ = 72646007594784.

The previous prime is 90819639842003. The next prime is 90819639842117. The reversal of 90819639842095 is 59024893691809.

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

It is a cyclic number.

It is not a de Polignac number, because 90819639842095 - 2²¹ = 90819637744943 is a prime.

It is a Duffinian number.

It is a congruent 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, 1212993684 + ... + 1213068553.

It is an arithmetic number, because the mean of its divisors is an integer number (13624765528608).

Almost surely, 2^{90819639842095} is an apocalyptic number.

90819639842095 is a deficient number, since it is larger than the sum of its proper divisors (18178484386769).

90819639842095 is a wasteful number, since it uses less digits than its factorization.

90819639842095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426069729.

The product of its (nonzero) digits is 302330880, while the sum is 73.

The spelling of 90819639842095 in words is "ninety trillion, eight hundred nineteen billion, six hundred thirty-nine million, eight hundred forty-two thousand, ninety-five".