90919452254145 has 32 divisors (see below), whose sum is σ = 150555372364800. Its totient is φ = 46797136130304.

The previous prime is 90919452254101. The next prime is 90919452254149. The reversal of 90919452254145 is 54145225491909.

It is a happy number.

It is not a de Polignac number, because 90919452254145 - 2⁴⁰ = 89819940626369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90919452254149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46260625 + ... + 48185934.

It is an arithmetic number, because the mean of its divisors is an integer number (4704855386400).

Almost surely, 2^{90919452254145} is an apocalyptic number.

It is an amenable number.

90919452254145 is a deficient number, since it is larger than the sum of its proper divisors (59635920110655).

90919452254145 is a wasteful number, since it uses less digits than its factorization.

90919452254145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94448809.

The product of its (nonzero) digits is 23328000, while the sum is 60.

The spelling of 90919452254145 in words is "ninety trillion, nine hundred nineteen billion, four hundred fifty-two million, two hundred fifty-four thousand, one hundred forty-five".