90439482890 has 32 divisors (see below), whose sum is σ = 169920187776. Its totient is φ = 34592493760.

The previous prime is 90439482851. The next prime is 90439482929. The reversal of 90439482890 is 9828493409.

It is an interprime number because it is at equal distance from previous prime (90439482851) and next prime (90439482929).

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, 727385 + ... + 842595.

It is an arithmetic number, because the mean of its divisors is an integer number (5310005868).

Almost surely, 2^90439482890 is an apocalyptic number.

90439482890 is a deficient number, since it is larger than the sum of its proper divisors (79480704886).

90439482890 is a wasteful number, since it uses less digits than its factorization.

90439482890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118654.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 90439482890 in words is "ninety billion, four hundred thirty-nine million, four hundred eighty-two thousand, eight hundred ninety".