902085073513 has 4 divisors (see below), whose sum is σ = 971476233028. Its totient is φ = 832693914000.

The previous prime is 902085073511. The next prime is 902085073517. The reversal of 902085073513 is 315370580209.

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

It can be written as a sum of positive squares in 2 ways, for example, as 568038064489 + 334047009024 = 753683^2 + 577968^2 .

It is not a de Polignac number, because 902085073513 - 2¹ = 902085073511 is a prime.

It is a super-2 number, since 2×902085073513² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 902085073513.

It is not an unprimeable number, because it can be changed into a prime (902085073511) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34695579738 + ... + 34695579763.

It is an arithmetic number, because the mean of its divisors is an integer number (242869058257).

Almost surely, 2^902085073513 is an apocalyptic number.

It is an amenable number.

902085073513 is a deficient number, since it is larger than the sum of its proper divisors (69391159515).

902085073513 is a wasteful number, since it uses less digits than its factorization.

902085073513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69391159514.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 902085073513 in words is "nine hundred two billion, eighty-five million, seventy-three thousand, five hundred thirteen".