90920271685 has 8 divisors (see below), whose sum is σ = 110485393920. Its totient is φ = 71815505424.

The previous prime is 90920271679. The next prime is 90920271691. The reversal of 90920271685 is 58617202909.

It is an interprime number because it is at equal distance from previous prime (90920271679) and next prime (90920271691).

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 90920271685 - 2¹³ = 90920263493 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 115088557 + ... + 115089346.

It is an arithmetic number, because the mean of its divisors is an integer number (13810674240).

Almost surely, 2^90920271685 is an apocalyptic number.

It is an amenable number.

90920271685 is a deficient number, since it is larger than the sum of its proper divisors (19565122235).

90920271685 is a wasteful number, since it uses less digits than its factorization.

90920271685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230177987.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 90920271685 in words is "ninety billion, nine hundred twenty million, two hundred seventy-one thousand, six hundred eighty-five".