90465732439 has 16 divisors (see below), whose sum is σ = 93561005664. Its totient is φ = 87413939200.

The previous prime is 90465732433. The next prime is 90465732481. The reversal of 90465732439 is 93423756409.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90465732439 - 2³¹ = 88318248791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90465732433) 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, 7049649 + ... + 7062469.

It is an arithmetic number, because the mean of its divisors is an integer number (5847562854).

Almost surely, 2^90465732439 is an apocalyptic number.

90465732439 is a deficient number, since it is larger than the sum of its proper divisors (3095273225).

90465732439 is a wasteful number, since it uses less digits than its factorization.

90465732439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14498.

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 90465732439 in words is "ninety billion, four hundred sixty-five million, seven hundred thirty-two thousand, four hundred thirty-nine".