90500614887 has 4 divisors (see below), whose sum is σ = 120667486520. Its totient is φ = 60333743256.

The previous prime is 90500614819. The next prime is 90500614903. The reversal of 90500614887 is 78841600509.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 90500614887 - 2¹² = 90500610791 is a prime.

It is a super-2 number, since 2×90500614887² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90500614187) 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 3 ways as a sum of consecutive naturals, for example, 15083435812 + ... + 15083435817.

It is an arithmetic number, because the mean of its divisors is an integer number (30166871630).

Almost surely, 2^90500614887 is an apocalyptic number.

90500614887 is a deficient number, since it is larger than the sum of its proper divisors (30166871633).

90500614887 is a wasteful number, since it uses less digits than its factorization.

90500614887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30166871632.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 90500614887 in words is "ninety billion, five hundred million, six hundred fourteen thousand, eight hundred eighty-seven".