83299772690 has 16 divisors (see below), whose sum is σ = 151266491928. Its totient is φ = 33025042176.

The previous prime is 83299772641. The next prime is 83299772701. The reversal of 83299772690 is 9627799238.

It is a Cunningham number, because it is equal to 288617²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 29988195241 + 53311577449 = 173171^2 + 230893^2 .

It is a super-2 number, since 2×83299772690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36857177 + ... + 36859436.

Almost surely, 2^83299772690 is an apocalyptic number.

83299772690 is a deficient number, since it is larger than the sum of its proper divisors (67966719238).

83299772690 is a wasteful number, since it uses less digits than its factorization.

83299772690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73716733.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 83299772690 in words is "eighty-three billion, two hundred ninety-nine million, seven hundred seventy-two thousand, six hundred ninety".