90720893074 has 32 divisors (see below), whose sum is σ = 173336699520. Its totient is φ = 34667336448.

The previous prime is 90720893033. The next prime is 90720893089. The reversal of 90720893074 is 47039802709.

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 15 ways as a sum of consecutive naturals, for example, 10026537 + ... + 10035580.

It is an arithmetic number, because the mean of its divisors is an integer number (5416771860).

Almost surely, 2^90720893074 is an apocalyptic number.

90720893074 is a deficient number, since it is larger than the sum of its proper divisors (82615806446).

90720893074 is a wasteful number, since it uses less digits than its factorization.

90720893074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20062162.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 90720893074 in words is "ninety billion, seven hundred twenty million, eight hundred ninety-three thousand, seventy-four".