90873328897 has 8 divisors (see below), whose sum is σ = 97898864616. Its totient is φ = 83852833152.

The previous prime is 90873328853. The next prime is 90873328913. The reversal of 90873328897 is 79882337809.

It can be written as a sum of positive squares in 4 ways, for example, as 446223376 + 90427105521 = 21124^2 + 300711^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90873328897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90873328397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222498 + ... + 1294699.

It is an arithmetic number, because the mean of its divisors is an integer number (12237358077).

Almost surely, 2^90873328897 is an apocalyptic number.

It is an amenable number.

90873328897 is a deficient number, since it is larger than the sum of its proper divisors (7025535719).

90873328897 is a wasteful number, since it uses less digits than its factorization.

90873328897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519987.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 90873328897 in words is "ninety billion, eight hundred seventy-three million, three hundred twenty-eight thousand, eight hundred ninety-seven".