90690635101 has 6 divisors (see below), whose sum is σ = 99684747806. Its totient is φ = 82446031800.

The previous prime is 90690635081. The next prime is 90690635111. The reversal of 90690635101 is 10153609609.

It can be written as a sum of positive squares in only one way, i.e., 71508108100 + 19182527001 = 267410^2 + 138501^2 .

It is not a de Polignac number, because 90690635101 - 2⁹ = 90690634589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90690635111) 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 5 ways as a sum of consecutive naturals, for example, 374754570 + ... + 374754811.

Almost surely, 2^90690635101 is an apocalyptic number.

It is an amenable number.

90690635101 is a deficient number, since it is larger than the sum of its proper divisors (8994112705).

90690635101 is a wasteful number, since it uses less digits than its factorization.

90690635101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749509403 (or 749509392 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 40.

The spelling of 90690635101 in words is "ninety billion, six hundred ninety million, six hundred thirty-five thousand, one hundred one".