90403807870 has 16 divisors (see below), whose sum is σ = 165484937520. Its totient is φ = 35548615744.

The previous prime is 90403807861. The next prime is 90403807927. The reversal of 90403807870 is 7870830409.

It is a self number, because there is not a number n which added to its sum of digits gives 90403807870.

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, 76612807 + ... + 76613986.

It is an arithmetic number, because the mean of its divisors is an integer number (10342808595).

Almost surely, 2^90403807870 is an apocalyptic number.

90403807870 is a deficient number, since it is larger than the sum of its proper divisors (75081129650).

90403807870 is a wasteful number, since it uses less digits than its factorization.

90403807870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153226859.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 90403807870 in words is "ninety billion, four hundred three million, eight hundred seven thousand, eight hundred seventy".