90387833747 has 16 divisors (see below), whose sum is σ = 91835251200. Its totient is φ = 88952690400.

The previous prime is 90387833743. The next prime is 90387833759. The reversal of 90387833747 is 74733878309.

It is a cyclic number.

It is not a de Polignac number, because 90387833747 - 2² = 90387833743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90387833743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14166404 + ... + 14172782.

It is an arithmetic number, because the mean of its divisors is an integer number (5739703200).

Almost surely, 2^90387833747 is an apocalyptic number.

90387833747 is a deficient number, since it is larger than the sum of its proper divisors (1447417453).

90387833747 is a wasteful number, since it uses less digits than its factorization.

90387833747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7306.

The product of its (nonzero) digits is 21337344, while the sum is 59.

The spelling of 90387833747 in words is "ninety billion, three hundred eighty-seven million, eight hundred thirty-three thousand, seven hundred forty-seven".