90578863070739 has 6 divisors (see below), whose sum is σ = 130836135546636. Its totient is φ = 60385908713820.

The previous prime is 90578863070737. The next prime is 90578863070771. The reversal of 90578863070739 is 93707036887509.

It is not a de Polignac number, because 90578863070739 - 2¹ = 90578863070737 is a prime.

It is a super-2 number, since 2×90578863070739² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90578863070737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5032159059477 + ... + 5032159059494.

It is an arithmetic number, because the mean of its divisors is an integer number (21806022591106).

Almost surely, 2^{90578863070739} is an apocalyptic number.

90578863070739 is a deficient number, since it is larger than the sum of its proper divisors (40257272475897).

90578863070739 is a wasteful number, since it uses less digits than its factorization.

90578863070739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10064318118977 (or 10064318118974 counting only the distinct ones).

The product of its (nonzero) digits is 480090240, while the sum is 72.

The spelling of 90578863070739 in words is "ninety trillion, five hundred seventy-eight billion, eight hundred sixty-three million, seventy thousand, seven hundred thirty-nine".