90073613515 has 8 divisors (see below), whose sum is σ = 109860276528. Its totient is φ = 70877597280.

The previous prime is 90073613507. The next prime is 90073613549. The reversal of 90073613515 is 51531637009.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90073613515 - 2³ = 90073613507 is a prime.

It is a super-2 number, since 2×90073613515² (a number of 23 digits) contains 22 as substring.

It is a Duffinian 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, 147661357 + ... + 147661966.

It is an arithmetic number, because the mean of its divisors is an integer number (13732534566).

Almost surely, 2^90073613515 is an apocalyptic number.

90073613515 is a deficient number, since it is larger than the sum of its proper divisors (19786663013).

90073613515 is a wasteful number, since it uses less digits than its factorization.

90073613515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295323389.

The product of its (nonzero) digits is 85050, while the sum is 40.

The spelling of 90073613515 in words is "ninety billion, seventy-three million, six hundred thirteen thousand, five hundred fifteen".